21653127

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{149}}^1\times {\mathrm{241}}^1$

素因数の和:463

約数の個数: 24

約数和(自身を含む): 32089200

約数和(自身を除く): 10436073

約数列:

[1, 3, 9, 67, 149, 201, 241, 447, 603, 723, 1341, 2169, 9983, 16147, 29949, 35909, 48441, 89847, 107727, 145323, 323181, 2405903, 7217709, 21653127]

約数ペア:

[(1, 21653127), (3, 7217709), (9, 2405903), (67, 323181), (149, 145323), (201, 107727), (241, 89847), (447, 48441), (603, 35909), (723, 29949), (1341, 16147), (2169, 9983)]