21462756

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1297}}^1$

素因数の和:1508

約数の個数: 48

約数和(自身を含む): 57568896

約数和(自身を除く): 36106140

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 197, 394, 591, 788, 1182, 1297, 1379, 2364, 2594, 2758, 3891, 4137, 5188, 5516, 7782, 8274, 9079, 15564, 16548, 18158, 27237, 36316, 54474, 108948, 255509, 511018, 766527, 1022036, 1533054, 1788563, 3066108, 3577126, 5365689, 7154252, 10731378, 21462756]

約数ペア:

[(1, 21462756), (2, 10731378), (3, 7154252), (4, 5365689), (6, 3577126), (7, 3066108), (12, 1788563), (14, 1533054), (21, 1022036), (28, 766527), (42, 511018), (84, 255509), (197, 108948), (394, 54474), (591, 36316), (788, 27237), (1182, 18158), (1297, 16548), (1379, 15564), (2364, 9079), (2594, 8274), (2758, 7782), (3891, 5516), (4137, 5188)]