218628249

素因数分解:

$3^1\times 7^2\times {\mathrm{631}}^1\times {\mathrm{2357}}^1$

素因数の和:3005

約数の個数: 24

約数和(自身を含む): 339778368

約数和(自身を除く): 121150119

約数列:

[1, 3, 7, 21, 49, 147, 631, 1893, 2357, 4417, 7071, 13251, 16499, 30919, 49497, 92757, 115493, 346479, 1487267, 4461801, 10410869, 31232607, 72876083, 218628249]

約数ペア:

[(1, 218628249), (3, 72876083), (7, 31232607), (21, 10410869), (49, 4461801), (147, 1487267), (631, 346479), (1893, 115493), (2357, 92757), (4417, 49497), (7071, 30919), (13251, 16499)]