21408045490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{1457321}}^1$

素因数の和:1457454

約数の個数: 32

約数和(自身を含む): 41865946416

約数和(自身を除く): 20457900926

約数列:

[1, 2, 5, 10, 13, 26, 65, 113, 130, 226, 565, 1130, 1469, 2938, 7345, 14690, 1457321, 2914642, 7286605, 14573210, 18945173, 37890346, 94725865, 164677273, 189451730, 329354546, 823386365, 1646772730, 2140804549, 4281609098, 10704022745, 21408045490]

約数ペア:

[(1, 21408045490), (2, 10704022745), (5, 4281609098), (10, 2140804549), (13, 1646772730), (26, 823386365), (65, 329354546), (113, 189451730), (130, 164677273), (226, 94725865), (565, 37890346), (1130, 18945173), (1469, 14573210), (2938, 7286605), (7345, 2914642), (14690, 1457321)]