21530196

素因数分解:

$2^2\times 3^2\times {\mathrm{173}}^1\times {\mathrm{3457}}^1$

素因数の和:3640

約数の個数: 36

約数和(自身を含む): 54753972

約数和(自身を除く): 33223776

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 173, 346, 519, 692, 1038, 1557, 2076, 3114, 3457, 6228, 6914, 10371, 13828, 20742, 31113, 41484, 62226, 124452, 598061, 1196122, 1794183, 2392244, 3588366, 5382549, 7176732, 10765098, 21530196]

約数ペア:

[(1, 21530196), (2, 10765098), (3, 7176732), (4, 5382549), (6, 3588366), (9, 2392244), (12, 1794183), (18, 1196122), (36, 598061), (173, 124452), (346, 62226), (519, 41484), (692, 31113), (1038, 20742), (1557, 13828), (2076, 10371), (3114, 6914), (3457, 6228)]