21085264

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{35617}}^1$

素因数の和:35662

約数の個数: 20

約数和(自身を含む): 41958004

約数和(自身を除く): 20872740

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 592, 35617, 71234, 142468, 284936, 569872, 1317829, 2635658, 5271316, 10542632, 21085264]

約数ペア:

[(1, 21085264), (2, 10542632), (4, 5271316), (8, 2635658), (16, 1317829), (37, 569872), (74, 284936), (148, 142468), (296, 71234), (592, 35617)]