21753560

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{8117}}^1$

素因数の和:8195

約数の個数: 32

約数和(自身を含む): 49682160

約数和(自身を除く): 27928600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 8117, 16234, 32468, 40585, 64936, 81170, 162340, 324680, 543839, 1087678, 2175356, 2719195, 4350712, 5438390, 10876780, 21753560]

約数ペア:

[(1, 21753560), (2, 10876780), (4, 5438390), (5, 4350712), (8, 2719195), (10, 2175356), (20, 1087678), (40, 543839), (67, 324680), (134, 162340), (268, 81170), (335, 64936), (536, 40585), (670, 32468), (1340, 16234), (2680, 8117)]