21239570

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{293}}^1\times {\mathrm{659}}^1$

素因数の和:970

約数の個数: 32

約数和(自身を含む): 41912640

約数和(自身を除く): 20673070

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 293, 586, 659, 1318, 1465, 2930, 3223, 3295, 6446, 6590, 7249, 14498, 16115, 32230, 36245, 72490, 193087, 386174, 965435, 1930870, 2123957, 4247914, 10619785, 21239570]

約数ペア:

[(1, 21239570), (2, 10619785), (5, 4247914), (10, 2123957), (11, 1930870), (22, 965435), (55, 386174), (110, 193087), (293, 72490), (586, 36245), (659, 32230), (1318, 16115), (1465, 14498), (2930, 7249), (3223, 6590), (3295, 6446)]