21000612435

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{311}}^1\times {\mathrm{6709}}^1$

素因数の和:7100

約数の個数: 64

約数和(自身を含む): 37381893120

約数和(自身を除く): 16381280685

約数列:

[1, 3, 5, 11, 15, 33, 55, 61, 165, 183, 305, 311, 671, 915, 933, 1555, 2013, 3355, 3421, 4665, 6709, 10065, 10263, 17105, 18971, 20127, 33545, 51315, 56913, 73799, 94855, 100635, 208681, 221397, 284565, 368995, 409249, 626043, 1043405, 1106985, 1227747, 2046245, 2086499, 3130215, 4501739, 6138735, 6259497, 10432495, 13505217, 22508695, 22951489, 31297485, 67526085, 68854467, 114757445, 127276439, 344272335, 381829317, 636382195, 1400040829, 1909146585, 4200122487, 7000204145, 21000612435]

約数ペア:

[(1, 21000612435), (3, 7000204145), (5, 4200122487), (11, 1909146585), (15, 1400040829), (33, 636382195), (55, 381829317), (61, 344272335), (165, 127276439), (183, 114757445), (305, 68854467), (311, 67526085), (671, 31297485), (915, 22951489), (933, 22508695), (1555, 13505217), (2013, 10432495), (3355, 6259497), (3421, 6138735), (4665, 4501739), (6709, 3130215), (10065, 2086499), (10263, 2046245), (17105, 1227747), (18971, 1106985), (20127, 1043405), (33545, 626043), (51315, 409249), (56913, 368995), (73799, 284565), (94855, 221397), (100635, 208681)]