19701904

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{42461}}^1$

素因数の和:42498

約数の個数: 20

約数和(自身を含む): 39489660

約数和(自身を除く): 19787756

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 42461, 84922, 169844, 339688, 679376, 1231369, 2462738, 4925476, 9850952, 19701904]

約数ペア:

[(1, 19701904), (2, 9850952), (4, 4925476), (8, 2462738), (16, 1231369), (29, 679376), (58, 339688), (116, 169844), (232, 84922), (464, 42461)]