21840368

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{4003}}^1$

素因数の和:4053

約数の個数: 40

約数和(自身を含む): 47663616

約数和(自身を除く): 25823248

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 44, 62, 88, 124, 176, 248, 341, 496, 682, 1364, 2728, 4003, 5456, 8006, 16012, 32024, 44033, 64048, 88066, 124093, 176132, 248186, 352264, 496372, 704528, 992744, 1365023, 1985488, 2730046, 5460092, 10920184, 21840368]

約数ペア:

[(1, 21840368), (2, 10920184), (4, 5460092), (8, 2730046), (11, 1985488), (16, 1365023), (22, 992744), (31, 704528), (44, 496372), (62, 352264), (88, 248186), (124, 176132), (176, 124093), (248, 88066), (341, 64048), (496, 44033), (682, 32024), (1364, 16012), (2728, 8006), (4003, 5456)]