215520945

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{2957}}^1$

素因数の和:3121

約数の個数: 32

約数和(自身を含む): 356095872

約数和(自身を除く): 140574927

約数列:

[1, 3, 5, 15, 43, 113, 129, 215, 339, 565, 645, 1695, 2957, 4859, 8871, 14577, 14785, 24295, 44355, 72885, 127151, 334141, 381453, 635755, 1002423, 1670705, 1907265, 5012115, 14368063, 43104189, 71840315, 215520945]

約数ペア:

[(1, 215520945), (3, 71840315), (5, 43104189), (15, 14368063), (43, 5012115), (113, 1907265), (129, 1670705), (215, 1002423), (339, 635755), (565, 381453), (645, 334141), (1695, 127151), (2957, 72885), (4859, 44355), (8871, 24295), (14577, 14785)]