20921439591

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{3767}}^1\times {\mathrm{15823}}^1$

素因数の和:19612

約数の個数: 32

約数和(自身を含む): 33389905920

約数和(自身を除く): 12468466329

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 3767, 11301, 15823, 33903, 47469, 48971, 101709, 142407, 146913, 205699, 427221, 440739, 617097, 1322217, 1851291, 5553873, 59605241, 178815723, 536447169, 774868133, 1609341507, 2324604399, 6973813197, 20921439591]

約数ペア:

[(1, 20921439591), (3, 6973813197), (9, 2324604399), (13, 1609341507), (27, 774868133), (39, 536447169), (117, 178815723), (351, 59605241), (3767, 5553873), (11301, 1851291), (15823, 1322217), (33903, 617097), (47469, 440739), (48971, 427221), (101709, 205699), (142407, 146913)]