21910728

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{3181}}^1$

素因数の和:3238

約数の個数: 64

約数和(自身を含む): 64149120

約数和(自身を除く): 42238392

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 41, 42, 56, 82, 84, 123, 164, 168, 246, 287, 328, 492, 574, 861, 984, 1148, 1722, 2296, 3181, 3444, 6362, 6888, 9543, 12724, 19086, 22267, 25448, 38172, 44534, 66801, 76344, 89068, 130421, 133602, 178136, 260842, 267204, 391263, 521684, 534408, 782526, 912947, 1043368, 1565052, 1825894, 2738841, 3130104, 3651788, 5477682, 7303576, 10955364, 21910728]

約数ペア:

[(1, 21910728), (2, 10955364), (3, 7303576), (4, 5477682), (6, 3651788), (7, 3130104), (8, 2738841), (12, 1825894), (14, 1565052), (21, 1043368), (24, 912947), (28, 782526), (41, 534408), (42, 521684), (56, 391263), (82, 267204), (84, 260842), (123, 178136), (164, 133602), (168, 130421), (246, 89068), (287, 76344), (328, 66801), (492, 44534), (574, 38172), (861, 25448), (984, 22267), (1148, 19086), (1722, 12724), (2296, 9543), (3181, 6888), (3444, 6362)]