20267865

素因数分解:

$3^2\times 5^1\times {\mathrm{461}}^1\times {\mathrm{977}}^1$

素因数の和:1449

約数の個数: 24

約数和(自身を含む): 35243208

約数和(自身を除く): 14975343

約数列:

[1, 3, 5, 9, 15, 45, 461, 977, 1383, 2305, 2931, 4149, 4885, 6915, 8793, 14655, 20745, 43965, 450397, 1351191, 2251985, 4053573, 6755955, 20267865]

約数ペア:

[(1, 20267865), (3, 6755955), (5, 4053573), (9, 2251985), (15, 1351191), (45, 450397), (461, 43965), (977, 20745), (1383, 14655), (2305, 8793), (2931, 6915), (4149, 4885)]