21814330

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{523}}^1$

素因数の和:670

約数の個数: 32

約数和(自身を含む): 40670784

約数和(自身を除く): 18856454

約数列:

[1, 2, 5, 10, 43, 86, 97, 194, 215, 430, 485, 523, 970, 1046, 2615, 4171, 5230, 8342, 20855, 22489, 41710, 44978, 50731, 101462, 112445, 224890, 253655, 507310, 2181433, 4362866, 10907165, 21814330]

約数ペア:

[(1, 21814330), (2, 10907165), (5, 4362866), (10, 2181433), (43, 507310), (86, 253655), (97, 224890), (194, 112445), (215, 101462), (430, 50731), (485, 44978), (523, 41710), (970, 22489), (1046, 20855), (2615, 8342), (4171, 5230)]