19663228

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{6199}}^1$

素因数の和:6277

約数の個数: 24

約数和(自身を含む): 37671200

約数和(自身を除く): 18007972

約数列:

[1, 2, 4, 13, 26, 52, 61, 122, 244, 793, 1586, 3172, 6199, 12398, 24796, 80587, 161174, 322348, 378139, 756278, 1512556, 4915807, 9831614, 19663228]

約数ペア:

[(1, 19663228), (2, 9831614), (4, 4915807), (13, 1512556), (26, 756278), (52, 378139), (61, 322348), (122, 161174), (244, 80587), (793, 24796), (1586, 12398), (3172, 6199)]