21912275

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{11383}}^1$

素因数の和:11411

約数の個数: 24

約数和(自身を含む): 33878784

約数和(自身を除く): 11966509

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 175, 275, 385, 1925, 11383, 56915, 79681, 125213, 284575, 398405, 626065, 876491, 1992025, 3130325, 4382455, 21912275]

約数ペア:

[(1, 21912275), (5, 4382455), (7, 3130325), (11, 1992025), (25, 876491), (35, 626065), (55, 398405), (77, 284575), (175, 125213), (275, 79681), (385, 56915), (1925, 11383)]