221445608

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{7321}}^1$

素因数の和:7545

約数の個数: 32

約数和(自身を含む): 439320000

約数和(自身を除く): 217874392

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 199, 398, 796, 1592, 3781, 7321, 7562, 14642, 15124, 29284, 30248, 58568, 139099, 278198, 556396, 1112792, 1456879, 2913758, 5827516, 11655032, 27680701, 55361402, 110722804, 221445608]

約数ペア:

[(1, 221445608), (2, 110722804), (4, 55361402), (8, 27680701), (19, 11655032), (38, 5827516), (76, 2913758), (152, 1456879), (199, 1112792), (398, 556396), (796, 278198), (1592, 139099), (3781, 58568), (7321, 30248), (7562, 29284), (14642, 15124)]