21254297820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{52769}}^1$

素因数の和:52932

約数の個数: 144

約数和(自身を含む): 69734921760

約数和(自身を除く): 48480623940

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 137, 140, 147, 196, 210, 245, 274, 294, 411, 420, 490, 548, 588, 685, 735, 822, 959, 980, 1370, 1470, 1644, 1918, 2055, 2740, 2877, 2940, 3836, 4110, 4795, 5754, 6713, 8220, 9590, 11508, 13426, 14385, 19180, 20139, 26852, 28770, 33565, 40278, 52769, 57540, 67130, 80556, 100695, 105538, 134260, 158307, 201390, 211076, 263845, 316614, 369383, 402780, 527690, 633228, 738766, 791535, 1055380, 1108149, 1477532, 1583070, 1846915, 2216298, 2585681, 3166140, 3693830, 4432596, 5171362, 5540745, 7229353, 7387660, 7757043, 10342724, 11081490, 12928405, 14458706, 15514086, 21688059, 22162980, 25856810, 28917412, 31028172, 36146765, 38785215, 43376118, 50605471, 51713620, 72293530, 77570430, 86752236, 101210942, 108440295, 144587060, 151816413, 155140860, 202421884, 216880590, 253027355, 303632826, 354238297, 433761180, 506054710, 607265652, 708476594, 759082065, 1012109420, 1062714891, 1416953188, 1518164130, 1771191485, 2125429782, 3036328260, 3542382970, 4250859564, 5313574455, 7084765940, 10627148910, 21254297820]

約数ペア:

[(1, 21254297820), (2, 10627148910), (3, 7084765940), (4, 5313574455), (5, 4250859564), (6, 3542382970), (7, 3036328260), (10, 2125429782), (12, 1771191485), (14, 1518164130), (15, 1416953188), (20, 1062714891), (21, 1012109420), (28, 759082065), (30, 708476594), (35, 607265652), (42, 506054710), (49, 433761180), (60, 354238297), (70, 303632826), (84, 253027355), (98, 216880590), (105, 202421884), (137, 155140860), (140, 151816413), (147, 144587060), (196, 108440295), (210, 101210942), (245, 86752236), (274, 77570430), (294, 72293530), (411, 51713620), (420, 50605471), (490, 43376118), (548, 38785215), (588, 36146765), (685, 31028172), (735, 28917412), (822, 25856810), (959, 22162980), (980, 21688059), (1370, 15514086), (1470, 14458706), (1644, 12928405), (1918, 11081490), (2055, 10342724), (2740, 7757043), (2877, 7387660), (2940, 7229353), (3836, 5540745), (4110, 5171362), (4795, 4432596), (5754, 3693830), (6713, 3166140), (8220, 2585681), (9590, 2216298), (11508, 1846915), (13426, 1583070), (14385, 1477532), (19180, 1108149), (20139, 1055380), (26852, 791535), (28770, 738766), (33565, 633228), (40278, 527690), (52769, 402780), (57540, 369383), (67130, 316614), (80556, 263845), (100695, 211076), (105538, 201390), (134260, 158307)]