21308664

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{419}}^1$

素因数の和:604

約数の個数: 64

約数和(自身を含む): 57859200

約数和(自身を除く): 36550536

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 163, 312, 326, 419, 489, 652, 838, 978, 1257, 1304, 1676, 1956, 2119, 2514, 3352, 3912, 4238, 5028, 5447, 6357, 8476, 10056, 10894, 12714, 16341, 16952, 21788, 25428, 32682, 43576, 50856, 65364, 68297, 130728, 136594, 204891, 273188, 409782, 546376, 819564, 887861, 1639128, 1775722, 2663583, 3551444, 5327166, 7102888, 10654332, 21308664]

約数ペア:

[(1, 21308664), (2, 10654332), (3, 7102888), (4, 5327166), (6, 3551444), (8, 2663583), (12, 1775722), (13, 1639128), (24, 887861), (26, 819564), (39, 546376), (52, 409782), (78, 273188), (104, 204891), (156, 136594), (163, 130728), (312, 68297), (326, 65364), (419, 50856), (489, 43576), (652, 32682), (838, 25428), (978, 21788), (1257, 16952), (1304, 16341), (1676, 12714), (1956, 10894), (2119, 10056), (2514, 8476), (3352, 6357), (3912, 5447), (4238, 5028)]