21581532

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{28547}}^1$

素因数の和:28567

約数の個数: 48

約数和(自身を含む): 63947520

約数和(自身を除く): 42365988

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756, 28547, 57094, 85641, 114188, 171282, 199829, 256923, 342564, 399658, 513846, 599487, 770769, 799316, 1027692, 1198974, 1541538, 1798461, 2397948, 3083076, 3596922, 5395383, 7193844, 10790766, 21581532]

約数ペア:

[(1, 21581532), (2, 10790766), (3, 7193844), (4, 5395383), (6, 3596922), (7, 3083076), (9, 2397948), (12, 1798461), (14, 1541538), (18, 1198974), (21, 1027692), (27, 799316), (28, 770769), (36, 599487), (42, 513846), (54, 399658), (63, 342564), (84, 256923), (108, 199829), (126, 171282), (189, 114188), (252, 85641), (378, 57094), (756, 28547)]