21160020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{607}}^1$

素因数の和:709

約数の個数: 96

約数和(自身を含む): 68640768

約数和(自身を除く): 47480748

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 83, 84, 105, 140, 166, 210, 249, 332, 415, 420, 498, 581, 607, 830, 996, 1162, 1214, 1245, 1660, 1743, 1821, 2324, 2428, 2490, 2905, 3035, 3486, 3642, 4249, 4980, 5810, 6070, 6972, 7284, 8498, 8715, 9105, 11620, 12140, 12747, 16996, 17430, 18210, 21245, 25494, 34860, 36420, 42490, 50381, 50988, 63735, 84980, 100762, 127470, 151143, 201524, 251905, 254940, 302286, 352667, 503810, 604572, 705334, 755715, 1007620, 1058001, 1410668, 1511430, 1763335, 2116002, 3022860, 3526670, 4232004, 5290005, 7053340, 10580010, 21160020]

約数ペア:

[(1, 21160020), (2, 10580010), (3, 7053340), (4, 5290005), (5, 4232004), (6, 3526670), (7, 3022860), (10, 2116002), (12, 1763335), (14, 1511430), (15, 1410668), (20, 1058001), (21, 1007620), (28, 755715), (30, 705334), (35, 604572), (42, 503810), (60, 352667), (70, 302286), (83, 254940), (84, 251905), (105, 201524), (140, 151143), (166, 127470), (210, 100762), (249, 84980), (332, 63735), (415, 50988), (420, 50381), (498, 42490), (581, 36420), (607, 34860), (830, 25494), (996, 21245), (1162, 18210), (1214, 17430), (1245, 16996), (1660, 12747), (1743, 12140), (1821, 11620), (2324, 9105), (2428, 8715), (2490, 8498), (2905, 7284), (3035, 6972), (3486, 6070), (3642, 5810), (4249, 4980)]