19638476

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:199

約数の個数: 72

約数和(自身を含む): 43041600

約数和(自身を除く): 23403124

約数列:

[1, 2, 4, 11, 13, 19, 22, 26, 38, 44, 52, 76, 139, 143, 169, 209, 247, 278, 286, 338, 418, 494, 556, 572, 676, 836, 988, 1529, 1807, 1859, 2641, 2717, 3058, 3211, 3614, 3718, 5282, 5434, 6116, 6422, 7228, 7436, 10564, 10868, 12844, 19877, 23491, 29051, 34333, 35321, 39754, 46982, 58102, 68666, 70642, 79508, 93964, 116204, 137332, 141284, 258401, 377663, 446329, 516802, 755326, 892658, 1033604, 1510652, 1785316, 4909619, 9819238, 19638476]

約数ペア:

[(1, 19638476), (2, 9819238), (4, 4909619), (11, 1785316), (13, 1510652), (19, 1033604), (22, 892658), (26, 755326), (38, 516802), (44, 446329), (52, 377663), (76, 258401), (139, 141284), (143, 137332), (169, 116204), (209, 93964), (247, 79508), (278, 70642), (286, 68666), (338, 58102), (418, 46982), (494, 39754), (556, 35321), (572, 34333), (676, 29051), (836, 23491), (988, 19877), (1529, 12844), (1807, 10868), (1859, 10564), (2641, 7436), (2717, 7228), (3058, 6422), (3211, 6116), (3614, 5434), (3718, 5282)]