21491635

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{179}}^1$

素因数の和:291

約数の個数: 32

約数和(自身を含む): 29548800

約数和(自身を除く): 8057165

約数列:

[1, 5, 11, 37, 55, 59, 179, 185, 295, 407, 649, 895, 1969, 2035, 2183, 3245, 6623, 9845, 10561, 10915, 24013, 33115, 52805, 72853, 116171, 120065, 364265, 390757, 580855, 1953785, 4298327, 21491635]

約数ペア:

[(1, 21491635), (5, 4298327), (11, 1953785), (37, 580855), (55, 390757), (59, 364265), (179, 120065), (185, 116171), (295, 72853), (407, 52805), (649, 33115), (895, 24013), (1969, 10915), (2035, 10561), (2183, 9845), (3245, 6623)]