21748285

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1$

素因数の和:237

約数の個数: 32

約数和(自身を含む): 29393280

約数和(自身を除く): 7644995

約数列:

[1, 5, 13, 53, 59, 65, 107, 265, 295, 535, 689, 767, 1391, 3127, 3445, 3835, 5671, 6313, 6955, 15635, 28355, 31565, 40651, 73723, 82069, 203255, 334589, 368615, 410345, 1672945, 4349657, 21748285]

約数ペア:

[(1, 21748285), (5, 4349657), (13, 1672945), (53, 410345), (59, 368615), (65, 334589), (107, 203255), (265, 82069), (295, 73723), (535, 40651), (689, 31565), (767, 28355), (1391, 15635), (3127, 6955), (3445, 6313), (3835, 5671)]