21512495

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{1039}}^1$

素因数の和:1186

約数の個数: 16

約数和(自身を含む): 26732160

約数和(自身を除く): 5219665

約数列:

[1, 5, 41, 101, 205, 505, 1039, 4141, 5195, 20705, 42599, 104939, 212995, 524695, 4302499, 21512495]

約数ペア:

[(1, 21512495), (5, 4302499), (41, 524695), (101, 212995), (205, 104939), (505, 42599), (1039, 20705), (4141, 5195)]