21549372

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1291}}^1$

素因数の和:1418

約数の個数: 48

約数和(自身を含む): 54698112

約数和(自身を除く): 33148740

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 107, 156, 214, 321, 428, 642, 1284, 1291, 1391, 2582, 2782, 3873, 4173, 5164, 5564, 7746, 8346, 15492, 16692, 16783, 33566, 50349, 67132, 100698, 138137, 201396, 276274, 414411, 552548, 828822, 1657644, 1795781, 3591562, 5387343, 7183124, 10774686, 21549372]

約数ペア:

[(1, 21549372), (2, 10774686), (3, 7183124), (4, 5387343), (6, 3591562), (12, 1795781), (13, 1657644), (26, 828822), (39, 552548), (52, 414411), (78, 276274), (107, 201396), (156, 138137), (214, 100698), (321, 67132), (428, 50349), (642, 33566), (1284, 16783), (1291, 16692), (1391, 15492), (2582, 8346), (2782, 7746), (3873, 5564), (4173, 5164)]