21715024

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1171}}^1$

素因数の和:1259

約数の個数: 40

約数和(自身を含む): 45051680

約数和(自身を除く): 23336656

約数列:

[1, 2, 4, 8, 16, 19, 38, 61, 76, 122, 152, 244, 304, 488, 976, 1159, 1171, 2318, 2342, 4636, 4684, 9272, 9368, 18544, 18736, 22249, 44498, 71431, 88996, 142862, 177992, 285724, 355984, 571448, 1142896, 1357189, 2714378, 5428756, 10857512, 21715024]

約数ペア:

[(1, 21715024), (2, 10857512), (4, 5428756), (8, 2714378), (16, 1357189), (19, 1142896), (38, 571448), (61, 355984), (76, 285724), (122, 177992), (152, 142862), (244, 88996), (304, 71431), (488, 44498), (976, 22249), (1159, 18736), (1171, 18544), (2318, 9368), (2342, 9272), (4636, 4684)]