21120084

素因数分解:

$2^2\times 3^2\times {\mathrm{41}}^2\times {\mathrm{349}}^1$

素因数の和:441

約数の個数: 54

約数和(自身を含む): 54877550

約数和(自身を除く): 33757466

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 41, 82, 123, 164, 246, 349, 369, 492, 698, 738, 1047, 1396, 1476, 1681, 2094, 3141, 3362, 4188, 5043, 6282, 6724, 10086, 12564, 14309, 15129, 20172, 28618, 30258, 42927, 57236, 60516, 85854, 128781, 171708, 257562, 515124, 586669, 1173338, 1760007, 2346676, 3520014, 5280021, 7040028, 10560042, 21120084]

約数ペア:

[(1, 21120084), (2, 10560042), (3, 7040028), (4, 5280021), (6, 3520014), (9, 2346676), (12, 1760007), (18, 1173338), (36, 586669), (41, 515124), (82, 257562), (123, 171708), (164, 128781), (246, 85854), (349, 60516), (369, 57236), (492, 42927), (698, 30258), (738, 28618), (1047, 20172), (1396, 15129), (1476, 14309), (1681, 12564), (2094, 10086), (3141, 6724), (3362, 6282), (4188, 5043)]