16989777

素因数分解:

$3^3\times 7^1\times {\mathrm{241}}^1\times {\mathrm{373}}^1$

素因数の和:630

約数の個数: 32

約数和(自身を含む): 28962560

約数和(自身を除く): 11972783

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 241, 373, 723, 1119, 1687, 2169, 2611, 3357, 5061, 6507, 7833, 10071, 15183, 23499, 45549, 70497, 89893, 269679, 629251, 809037, 1887753, 2427111, 5663259, 16989777]

約数ペア:

[(1, 16989777), (3, 5663259), (7, 2427111), (9, 1887753), (21, 809037), (27, 629251), (63, 269679), (189, 89893), (241, 70497), (373, 45549), (723, 23499), (1119, 15183), (1687, 10071), (2169, 7833), (2611, 6507), (3357, 5061)]