21849940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{156071}}^1$

素因数の和:156087

約数の個数: 24

約数和(自身を含む): 52440192

約数和(自身を除く): 30590252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 156071, 312142, 624284, 780355, 1092497, 1560710, 2184994, 3121420, 4369988, 5462485, 10924970, 21849940]

約数ペア:

[(1, 21849940), (2, 10924970), (4, 5462485), (5, 4369988), (7, 3121420), (10, 2184994), (14, 1560710), (20, 1092497), (28, 780355), (35, 624284), (70, 312142), (140, 156071)]