19611864

素因数分解:

$2^3\times 3^2\times {\mathrm{421}}^1\times {\mathrm{647}}^1$

素因数の和:1080

約数の個数: 48

約数和(自身を含む): 53323920

約数和(自身を除く): 33712056

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 421, 647, 842, 1263, 1294, 1684, 1941, 2526, 2588, 3368, 3789, 3882, 5052, 5176, 5823, 7578, 7764, 10104, 11646, 15156, 15528, 23292, 30312, 46584, 272387, 544774, 817161, 1089548, 1634322, 2179096, 2451483, 3268644, 4902966, 6537288, 9805932, 19611864]

約数ペア:

[(1, 19611864), (2, 9805932), (3, 6537288), (4, 4902966), (6, 3268644), (8, 2451483), (9, 2179096), (12, 1634322), (18, 1089548), (24, 817161), (36, 544774), (72, 272387), (421, 46584), (647, 30312), (842, 23292), (1263, 15528), (1294, 15156), (1684, 11646), (1941, 10104), (2526, 7764), (2588, 7578), (3368, 5823), (3789, 5176), (3882, 5052)]