21309055

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{179}}^1\times {\mathrm{821}}^1$

素因数の和:1034

約数の個数: 16

約数和(自身を含む): 26632800

約数和(自身を除く): 5323745

約数列:

[1, 5, 29, 145, 179, 821, 895, 4105, 5191, 23809, 25955, 119045, 146959, 734795, 4261811, 21309055]

約数ペア:

[(1, 21309055), (5, 4261811), (29, 734795), (145, 146959), (179, 119045), (821, 25955), (895, 23809), (4105, 5191)]