20442885

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{271}}^1$

素因数の和:433

約数の個数: 32

約数和(自身を含む): 33841152

約数和(自身を除く): 13398267

約数列:

[1, 3, 5, 15, 47, 107, 141, 235, 271, 321, 535, 705, 813, 1355, 1605, 4065, 5029, 12737, 15087, 25145, 28997, 38211, 63685, 75435, 86991, 144985, 191055, 434955, 1362859, 4088577, 6814295, 20442885]

約数ペア:

[(1, 20442885), (3, 6814295), (5, 4088577), (15, 1362859), (47, 434955), (107, 191055), (141, 144985), (235, 86991), (271, 75435), (321, 63685), (535, 38211), (705, 28997), (813, 25145), (1355, 15087), (1605, 12737), (4065, 5029)]