21332008

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{1553}}^1$

素因数の和:1677

約数の個数: 32

約数和(自身を含む): 42797160

約数和(自身を除く): 21465152

約数列:

[1, 2, 4, 8, 17, 34, 68, 101, 136, 202, 404, 808, 1553, 1717, 3106, 3434, 6212, 6868, 12424, 13736, 26401, 52802, 105604, 156853, 211208, 313706, 627412, 1254824, 2666501, 5333002, 10666004, 21332008]

約数ペア:

[(1, 21332008), (2, 10666004), (4, 5333002), (8, 2666501), (17, 1254824), (34, 627412), (68, 313706), (101, 211208), (136, 156853), (202, 105604), (404, 52802), (808, 26401), (1553, 13736), (1717, 12424), (3106, 6868), (3434, 6212)]