21812915575

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{3061}}^1\times {\mathrm{25913}}^1$

素因数の和:28995

約数の個数: 24

約数和(自身を含む): 29517704496

約数和(自身を除く): 7704788921

約数列:

[1, 5, 11, 25, 55, 275, 3061, 15305, 25913, 33671, 76525, 129565, 168355, 285043, 647825, 841775, 1425215, 7126075, 79319693, 396598465, 872516623, 1982992325, 4362583115, 21812915575]

約数ペア:

[(1, 21812915575), (5, 4362583115), (11, 1982992325), (25, 872516623), (55, 396598465), (275, 79319693), (3061, 7126075), (15305, 1425215), (25913, 841775), (33671, 647825), (76525, 285043), (129565, 168355)]