21004448785

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{953}}^1\times {\mathrm{1093}}^1$

素因数の和:2197

約数の個数: 32

約数和(自身を含む): 26175394080

約数和(自身を除く): 5170945295

約数列:

[1, 5, 37, 109, 185, 545, 953, 1093, 4033, 4765, 5465, 20165, 35261, 40441, 103877, 119137, 176305, 202205, 519385, 595685, 1041629, 3843449, 4408069, 5208145, 19217245, 22040345, 38540273, 113537561, 192701365, 567687805, 4200889757, 21004448785]

約数ペア:

[(1, 21004448785), (5, 4200889757), (37, 567687805), (109, 192701365), (185, 113537561), (545, 38540273), (953, 22040345), (1093, 19217245), (4033, 5208145), (4765, 4408069), (5465, 3843449), (20165, 1041629), (35261, 595685), (40441, 519385), (103877, 202205), (119137, 176305)]