18974878

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{2693}}^1$

素因数の和:2979

約数の個数: 16

約数和(自身を含む): 30776256

約数和(自身を除く): 11801378

約数列:

[1, 2, 13, 26, 271, 542, 2693, 3523, 5386, 7046, 35009, 70018, 729803, 1459606, 9487439, 18974878]

約数ペア:

[(1, 18974878), (2, 9487439), (13, 1459606), (26, 729803), (271, 70018), (542, 35009), (2693, 7046), (3523, 5386)]