21221392

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{18169}}^1$

素因数の和:18250

約数の個数: 20

約数和(自身を含む): 41681980

約数和(自身を除く): 20460588

約数列:

[1, 2, 4, 8, 16, 73, 146, 292, 584, 1168, 18169, 36338, 72676, 145352, 290704, 1326337, 2652674, 5305348, 10610696, 21221392]

約数ペア:

[(1, 21221392), (2, 10610696), (4, 5305348), (8, 2652674), (16, 1326337), (73, 290704), (146, 145352), (292, 72676), (584, 36338), (1168, 18169)]