208151208

素因数分解:

$2^3\times 3^4\times {\mathrm{321221}}^1$

素因数の和:321239

約数の個数: 40

約数和(自身を含む): 583017930

約数和(自身を除く): 374866722

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 321221, 642442, 963663, 1284884, 1927326, 2569768, 2890989, 3854652, 5781978, 7709304, 8672967, 11563956, 17345934, 23127912, 26018901, 34691868, 52037802, 69383736, 104075604, 208151208]

約数ペア:

[(1, 208151208), (2, 104075604), (3, 69383736), (4, 52037802), (6, 34691868), (8, 26018901), (9, 23127912), (12, 17345934), (18, 11563956), (24, 8672967), (27, 7709304), (36, 5781978), (54, 3854652), (72, 2890989), (81, 2569768), (108, 1927326), (162, 1284884), (216, 963663), (324, 642442), (648, 321221)]