21378056

素因数分解:

$2^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{9311}}^1$

素因数の和:9365

約数の個数: 32

約数和(自身を含む): 46932480

約数和(自身を除く): 25554424

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 56, 82, 164, 287, 328, 574, 1148, 2296, 9311, 18622, 37244, 65177, 74488, 130354, 260708, 381751, 521416, 763502, 1527004, 2672257, 3054008, 5344514, 10689028, 21378056]

約数ペア:

[(1, 21378056), (2, 10689028), (4, 5344514), (7, 3054008), (8, 2672257), (14, 1527004), (28, 763502), (41, 521416), (56, 381751), (82, 260708), (164, 130354), (287, 74488), (328, 65177), (574, 37244), (1148, 18622), (2296, 9311)]