19815484

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{6247}}^1$

素因数の和:6325

約数の個数: 24

約数和(自身を含む): 37962848

約数和(自身を除く): 18147364

約数列:

[1, 2, 4, 13, 26, 52, 61, 122, 244, 793, 1586, 3172, 6247, 12494, 24988, 81211, 162422, 324844, 381067, 762134, 1524268, 4953871, 9907742, 19815484]

約数ペア:

[(1, 19815484), (2, 9907742), (4, 4953871), (13, 1524268), (26, 762134), (52, 381067), (61, 324844), (122, 162422), (244, 81211), (793, 24988), (1586, 12494), (3172, 6247)]