208931856

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{621821}}^1$

素因数の和:621839

約数の個数: 40

約数和(自身を含む): 616847424

約数和(自身を除く): 407915568

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 621821, 1243642, 1865463, 2487284, 3730926, 4352747, 4974568, 7461852, 8705494, 9949136, 13058241, 14923704, 17410988, 26116482, 29847408, 34821976, 52232964, 69643952, 104465928, 208931856]

約数ペア:

[(1, 208931856), (2, 104465928), (3, 69643952), (4, 52232964), (6, 34821976), (7, 29847408), (8, 26116482), (12, 17410988), (14, 14923704), (16, 13058241), (21, 9949136), (24, 8705494), (28, 7461852), (42, 4974568), (48, 4352747), (56, 3730926), (84, 2487284), (112, 1865463), (168, 1243642), (336, 621821)]