21348495

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1$

素因数の和:110

約数の個数: 128

約数和(自身を含む): 48384000

約数和(自身を除く): 27035505

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 27, 29, 35, 41, 45, 57, 63, 87, 95, 105, 123, 133, 135, 145, 171, 189, 203, 205, 261, 285, 287, 315, 369, 399, 435, 513, 551, 609, 615, 665, 779, 783, 855, 861, 945, 1015, 1107, 1189, 1197, 1305, 1435, 1653, 1827, 1845, 1995, 2337, 2565, 2583, 2755, 3045, 3567, 3591, 3857, 3895, 3915, 4305, 4959, 5453, 5481, 5535, 5945, 5985, 7011, 7749, 8265, 8323, 9135, 10701, 11571, 11685, 12915, 14877, 16359, 17835, 17955, 19285, 21033, 22591, 24795, 24969, 27265, 27405, 32103, 34713, 35055, 38745, 41615, 49077, 53505, 57855, 67773, 74385, 74907, 81795, 104139, 105165, 112955, 124845, 147231, 158137, 160515, 173565, 203319, 224721, 245385, 338865, 374535, 474411, 520695, 609957, 736155, 790685, 1016595, 1123605, 1423233, 2372055, 3049785, 4269699, 7116165, 21348495]

約数ペア:

[(1, 21348495), (3, 7116165), (5, 4269699), (7, 3049785), (9, 2372055), (15, 1423233), (19, 1123605), (21, 1016595), (27, 790685), (29, 736155), (35, 609957), (41, 520695), (45, 474411), (57, 374535), (63, 338865), (87, 245385), (95, 224721), (105, 203319), (123, 173565), (133, 160515), (135, 158137), (145, 147231), (171, 124845), (189, 112955), (203, 105165), (205, 104139), (261, 81795), (285, 74907), (287, 74385), (315, 67773), (369, 57855), (399, 53505), (435, 49077), (513, 41615), (551, 38745), (609, 35055), (615, 34713), (665, 32103), (779, 27405), (783, 27265), (855, 24969), (861, 24795), (945, 22591), (1015, 21033), (1107, 19285), (1189, 17955), (1197, 17835), (1305, 16359), (1435, 14877), (1653, 12915), (1827, 11685), (1845, 11571), (1995, 10701), (2337, 9135), (2565, 8323), (2583, 8265), (2755, 7749), (3045, 7011), (3567, 5985), (3591, 5945), (3857, 5535), (3895, 5481), (3915, 5453), (4305, 4959)]