21983840

素因数分解:

$2^5\times 5^1\times {\mathrm{137399}}^1$

素因数の和:137414

約数の個数: 24

約数和(自身を含む): 51937200

約数和(自身を除く): 29953360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 137399, 274798, 549596, 686995, 1099192, 1373990, 2198384, 2747980, 4396768, 5495960, 10991920, 21983840]

約数ペア:

[(1, 21983840), (2, 10991920), (4, 5495960), (5, 4396768), (8, 2747980), (10, 2198384), (16, 1373990), (20, 1099192), (32, 686995), (40, 549596), (80, 274798), (160, 137399)]