20921784778

素因数分解:

$2^1\times {\mathrm{977}}^1\times {\mathrm{1453}}^1\times {\mathrm{7369}}^1$

素因数の和:9801

約数の個数: 16

約数和(自身を含む): 31440685320

約数和(自身を除く): 10518900542

約数列:

[1, 2, 977, 1453, 1954, 2906, 7369, 14738, 1419581, 2839162, 7199513, 10707157, 14399026, 21414314, 10460892389, 20921784778]

約数ペア:

[(1, 20921784778), (2, 10460892389), (977, 21414314), (1453, 14399026), (1954, 10707157), (2906, 7199513), (7369, 2839162), (14738, 1419581)]