21000252680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47727847}}^1$

素因数の和:47727869

約数の個数: 32

約数和(自身を含む): 51546075840

約数和(自身を除く): 30545823160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 47727847, 95455694, 190911388, 238639235, 381822776, 477278470, 525006317, 954556940, 1050012634, 1909113880, 2100025268, 2625031585, 4200050536, 5250063170, 10500126340, 21000252680]

約数ペア:

[(1, 21000252680), (2, 10500126340), (4, 5250063170), (5, 4200050536), (8, 2625031585), (10, 2100025268), (11, 1909113880), (20, 1050012634), (22, 954556940), (40, 525006317), (44, 477278470), (55, 381822776), (88, 238639235), (110, 190911388), (220, 95455694), (440, 47727847)]