18902344

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{409}}^1$

素因数の和:577

約数の個数: 32

約数和(自身を含む): 36531000

約数和(自身を除く): 17628656

約数列:

[1, 2, 4, 8, 53, 106, 109, 212, 218, 409, 424, 436, 818, 872, 1636, 3272, 5777, 11554, 21677, 23108, 43354, 44581, 46216, 86708, 89162, 173416, 178324, 356648, 2362793, 4725586, 9451172, 18902344]

約数ペア:

[(1, 18902344), (2, 9451172), (4, 4725586), (8, 2362793), (53, 356648), (106, 178324), (109, 173416), (212, 89162), (218, 86708), (409, 46216), (424, 44581), (436, 43354), (818, 23108), (872, 21677), (1636, 11554), (3272, 5777)]