20741895

素因数分解:

$3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5179}}^1$

素因数の和:5279

約数の個数: 24

約数和(自身を含む): 36363600

約数和(自身を除く): 15621705

約数列:

[1, 3, 5, 9, 15, 45, 89, 267, 445, 801, 1335, 4005, 5179, 15537, 25895, 46611, 77685, 233055, 460931, 1382793, 2304655, 4148379, 6913965, 20741895]

約数ペア:

[(1, 20741895), (3, 6913965), (5, 4148379), (9, 2304655), (15, 1382793), (45, 460931), (89, 233055), (267, 77685), (445, 46611), (801, 25895), (1335, 15537), (4005, 5179)]