18747056

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{439}}^1$

素因数の和:621

約数の個数: 40

約数和(自身を含む): 38792160

約数和(自身を除く): 20045104

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 157, 272, 314, 439, 628, 878, 1256, 1756, 2512, 2669, 3512, 5338, 7024, 7463, 10676, 14926, 21352, 29852, 42704, 59704, 68923, 119408, 137846, 275692, 551384, 1102768, 1171691, 2343382, 4686764, 9373528, 18747056]

約数ペア:

[(1, 18747056), (2, 9373528), (4, 4686764), (8, 2343382), (16, 1171691), (17, 1102768), (34, 551384), (68, 275692), (136, 137846), (157, 119408), (272, 68923), (314, 59704), (439, 42704), (628, 29852), (878, 21352), (1256, 14926), (1756, 10676), (2512, 7463), (2669, 7024), (3512, 5338)]