381220821

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{149}}^1\times {\mathrm{4243}}^1$

素因数の和:4465

約数の個数: 24

約数和(自身を含む): 562754400

約数和(自身を除く): 181533579

約数列:

[1, 3, 9, 67, 149, 201, 447, 603, 1341, 4243, 9983, 12729, 29949, 38187, 89847, 284281, 632207, 852843, 1896621, 2558529, 5689863, 42357869, 127073607, 381220821]

約数ペア:

[(1, 381220821), (3, 127073607), (9, 42357869), (67, 5689863), (149, 2558529), (201, 1896621), (447, 852843), (603, 632207), (1341, 284281), (4243, 89847), (9983, 38187), (12729, 29949)]