18782916

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{409}}^1$

素因数の和:548

約数の個数: 48

約数和(自身を含む): 45460800

約数和(自身を除く): 26677884

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 89, 129, 172, 178, 258, 267, 356, 409, 516, 534, 818, 1068, 1227, 1636, 2454, 3827, 4908, 7654, 11481, 15308, 17587, 22962, 35174, 36401, 45924, 52761, 70348, 72802, 105522, 109203, 145604, 211044, 218406, 436812, 1565243, 3130486, 4695729, 6260972, 9391458, 18782916]

約数ペア:

[(1, 18782916), (2, 9391458), (3, 6260972), (4, 4695729), (6, 3130486), (12, 1565243), (43, 436812), (86, 218406), (89, 211044), (129, 145604), (172, 109203), (178, 105522), (258, 72802), (267, 70348), (356, 52761), (409, 45924), (516, 36401), (534, 35174), (818, 22962), (1068, 17587), (1227, 15308), (1636, 11481), (2454, 7654), (3827, 4908)]