19757210

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{4177}}^1$

素因数の和:4238

約数の個数: 32

約数和(自身を含む): 39707712

約数和(自身を除く): 19950502

約数列:

[1, 2, 5, 10, 11, 22, 43, 55, 86, 110, 215, 430, 473, 946, 2365, 4177, 4730, 8354, 20885, 41770, 45947, 91894, 179611, 229735, 359222, 459470, 898055, 1796110, 1975721, 3951442, 9878605, 19757210]

約数ペア:

[(1, 19757210), (2, 9878605), (5, 3951442), (10, 1975721), (11, 1796110), (22, 898055), (43, 459470), (55, 359222), (86, 229735), (110, 179611), (215, 91894), (430, 45947), (473, 41770), (946, 20885), (2365, 8354), (4177, 4730)]