21000906365

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1\times {\mathrm{11717}}^1$

素因数の和:12061

約数の個数: 32

約数和(自身を含む): 26728289280

約数和(自身を除く): 5727382915

約数列:

[1, 5, 29, 47, 145, 235, 263, 1315, 1363, 6815, 7627, 11717, 12361, 38135, 58585, 61805, 339793, 358469, 550699, 1698965, 1792345, 2753495, 3081571, 15407855, 15970271, 79851355, 89365559, 144833837, 446827795, 724169185, 4200181273, 21000906365]

約数ペア:

[(1, 21000906365), (5, 4200181273), (29, 724169185), (47, 446827795), (145, 144833837), (235, 89365559), (263, 79851355), (1315, 15970271), (1363, 15407855), (6815, 3081571), (7627, 2753495), (11717, 1792345), (12361, 1698965), (38135, 550699), (58585, 358469), (61805, 339793)]