19879888

素因数分解:

$2^4\times 7^2\times {\mathrm{25357}}^1$

素因数の和:25379

約数の個数: 30

約数和(自身を含む): 44807586

約数和(自身を除く): 24927698

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784, 25357, 50714, 101428, 177499, 202856, 354998, 405712, 709996, 1242493, 1419992, 2484986, 2839984, 4969972, 9939944, 19879888]

約数ペア:

[(1, 19879888), (2, 9939944), (4, 4969972), (7, 2839984), (8, 2484986), (14, 1419992), (16, 1242493), (28, 709996), (49, 405712), (56, 354998), (98, 202856), (112, 177499), (196, 101428), (392, 50714), (784, 25357)]