201321449

素因数分解:

$7^4\times {\mathrm{191}}^1\times {\mathrm{439}}^1$

素因数の和:658

約数の個数: 20

約数和(自身を含む): 236628480

約数和(自身を除く): 35307031

約数列:

[1, 7, 49, 191, 343, 439, 1337, 2401, 3073, 9359, 21511, 65513, 83849, 150577, 458591, 586943, 1054039, 4108601, 28760207, 201321449]

約数ペア:

[(1, 201321449), (7, 28760207), (49, 4108601), (191, 1054039), (343, 586943), (439, 458591), (1337, 150577), (2401, 83849), (3073, 65513), (9359, 21511)]