21839968

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2113}}^1$

素因数の和:2159

約数の個数: 48

約数和(自身を含む): 47945520

約数和(自身を除く): 26105552

約数列:

[1, 2, 4, 8, 16, 17, 19, 32, 34, 38, 68, 76, 136, 152, 272, 304, 323, 544, 608, 646, 1292, 2113, 2584, 4226, 5168, 8452, 10336, 16904, 33808, 35921, 40147, 67616, 71842, 80294, 143684, 160588, 287368, 321176, 574736, 642352, 682499, 1149472, 1284704, 1364998, 2729996, 5459992, 10919984, 21839968]

約数ペア:

[(1, 21839968), (2, 10919984), (4, 5459992), (8, 2729996), (16, 1364998), (17, 1284704), (19, 1149472), (32, 682499), (34, 642352), (38, 574736), (68, 321176), (76, 287368), (136, 160588), (152, 143684), (272, 80294), (304, 71842), (323, 67616), (544, 40147), (608, 35921), (646, 33808), (1292, 16904), (2113, 10336), (2584, 8452), (4226, 5168)]