218214544

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{717811}}^1$

素因数の和:717838

約数の個数: 20

約数和(自身を含む): 445043440

約数和(自身を除く): 226828896

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 717811, 1435622, 2871244, 5742488, 11484976, 13638409, 27276818, 54553636, 109107272, 218214544]

約数ペア:

[(1, 218214544), (2, 109107272), (4, 54553636), (8, 27276818), (16, 13638409), (19, 11484976), (38, 5742488), (76, 2871244), (152, 1435622), (304, 717811)]