221643376

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{337871}}^1$

素因数の和:337920

約数の個数: 20

約数和(自身を含む): 439909344

約数和(自身を除く): 218265968

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 337871, 675742, 1351484, 2702968, 5405936, 13852711, 27705422, 55410844, 110821688, 221643376]

約数ペア:

[(1, 221643376), (2, 110821688), (4, 55410844), (8, 27705422), (16, 13852711), (41, 5405936), (82, 2702968), (164, 1351484), (328, 675742), (656, 337871)]