21557029676

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{121607}}^1$

素因数の和:122118

約数の個数: 48

約数和(自身を含む): 46526247936

約数和(自身を除く): 24969218260

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 487, 974, 1948, 3409, 6331, 6818, 12662, 13636, 25324, 44317, 88634, 121607, 177268, 243214, 486428, 851249, 1580891, 1702498, 3161782, 3404996, 6323564, 11066237, 22132474, 44264948, 59222609, 118445218, 236890436, 414558263, 769893917, 829116526, 1539787834, 1658233052, 3079575668, 5389257419, 10778514838, 21557029676]

約数ペア:

[(1, 21557029676), (2, 10778514838), (4, 5389257419), (7, 3079575668), (13, 1658233052), (14, 1539787834), (26, 829116526), (28, 769893917), (52, 414558263), (91, 236890436), (182, 118445218), (364, 59222609), (487, 44264948), (974, 22132474), (1948, 11066237), (3409, 6323564), (6331, 3404996), (6818, 3161782), (12662, 1702498), (13636, 1580891), (25324, 851249), (44317, 486428), (88634, 243214), (121607, 177268)]