20686952

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^3\times {\mathrm{107}}^1$

素因数の和:163

約数の個数: 64

約数和(自身を含む): 46267200

約数和(自身を除く): 25580248

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 107, 143, 169, 214, 286, 338, 428, 572, 676, 856, 1144, 1177, 1352, 1391, 1859, 2197, 2354, 2782, 3718, 4394, 4708, 5564, 7436, 8788, 9416, 11128, 14872, 15301, 17576, 18083, 24167, 30602, 36166, 48334, 61204, 72332, 96668, 122408, 144664, 193336, 198913, 235079, 397826, 470158, 795652, 940316, 1591304, 1880632, 2585869, 5171738, 10343476, 20686952]

約数ペア:

[(1, 20686952), (2, 10343476), (4, 5171738), (8, 2585869), (11, 1880632), (13, 1591304), (22, 940316), (26, 795652), (44, 470158), (52, 397826), (88, 235079), (104, 198913), (107, 193336), (143, 144664), (169, 122408), (214, 96668), (286, 72332), (338, 61204), (428, 48334), (572, 36166), (676, 30602), (856, 24167), (1144, 18083), (1177, 17576), (1352, 15301), (1391, 14872), (1859, 11128), (2197, 9416), (2354, 8788), (2782, 7436), (3718, 5564), (4394, 4708)]