21454090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{6521}}^1$

素因数の和:6582

約数の個数: 32

約数和(自身を含む): 45080064

約数和(自身を除く): 23625974

約数列:

[1, 2, 5, 7, 10, 14, 35, 47, 70, 94, 235, 329, 470, 658, 1645, 3290, 6521, 13042, 32605, 45647, 65210, 91294, 228235, 306487, 456470, 612974, 1532435, 2145409, 3064870, 4290818, 10727045, 21454090]

約数ペア:

[(1, 21454090), (2, 10727045), (5, 4290818), (7, 3064870), (10, 2145409), (14, 1532435), (35, 612974), (47, 456470), (70, 306487), (94, 228235), (235, 91294), (329, 65210), (470, 45647), (658, 32605), (1645, 13042), (3290, 6521)]