18864272

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3917}}^1$

素因数の和:3975

約数の個数: 40

約数和(自身を含む): 42753216

約数和(自身を除く): 23888944

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 86, 112, 172, 301, 344, 602, 688, 1204, 2408, 3917, 4816, 7834, 15668, 27419, 31336, 54838, 62672, 109676, 168431, 219352, 336862, 438704, 673724, 1179017, 1347448, 2358034, 2694896, 4716068, 9432136, 18864272]

約数ペア:

[(1, 18864272), (2, 9432136), (4, 4716068), (7, 2694896), (8, 2358034), (14, 1347448), (16, 1179017), (28, 673724), (43, 438704), (56, 336862), (86, 219352), (112, 168431), (172, 109676), (301, 62672), (344, 54838), (602, 31336), (688, 27419), (1204, 15668), (2408, 7834), (3917, 4816)]