217625961

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{233}}^1\times {\mathrm{563}}^1$

素因数の和:885

約数の個数: 32

約数和(自身を含む): 337858560

約数和(自身を除く): 120232599

約数列:

[1, 3, 7, 21, 79, 233, 237, 553, 563, 699, 1631, 1659, 1689, 3941, 4893, 11823, 18407, 44477, 55221, 128849, 131179, 133431, 311339, 386547, 393537, 918253, 934017, 2754759, 10363141, 31089423, 72541987, 217625961]

約数ペア:

[(1, 217625961), (3, 72541987), (7, 31089423), (21, 10363141), (79, 2754759), (233, 934017), (237, 918253), (553, 393537), (563, 386547), (699, 311339), (1631, 133431), (1659, 131179), (1689, 128849), (3941, 55221), (4893, 44477), (11823, 18407)]