21509430

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{716981}}^1$

素因数の和:716991

約数の個数: 16

約数和(自身を含む): 51622704

約数和(自身を除く): 30113274

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 716981, 1433962, 2150943, 3584905, 4301886, 7169810, 10754715, 21509430]

約数ペア:

[(1, 21509430), (2, 10754715), (3, 7169810), (5, 4301886), (6, 3584905), (10, 2150943), (15, 1433962), (30, 716981)]