18981976

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{182519}}^1$

素因数の和:182538

約数の個数: 16

約数和(自身を含む): 38329200

約数和(自身を除く): 19347224

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 182519, 365038, 730076, 1460152, 2372747, 4745494, 9490988, 18981976]

約数ペア:

[(1, 18981976), (2, 9490988), (4, 4745494), (8, 2372747), (13, 1460152), (26, 730076), (52, 365038), (104, 182519)]