217639185

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{907}}^1\times {\mathrm{941}}^1$

素因数の和:1873

約数の個数: 32

約数和(自身を含む): 369505152

約数和(自身を除く): 151865967

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 907, 941, 2721, 2823, 4535, 4705, 13605, 14115, 15419, 15997, 46257, 47991, 77095, 79985, 231285, 239955, 853487, 2560461, 4267435, 12802305, 14509279, 43527837, 72546395, 217639185]

約数ペア:

[(1, 217639185), (3, 72546395), (5, 43527837), (15, 14509279), (17, 12802305), (51, 4267435), (85, 2560461), (255, 853487), (907, 239955), (941, 231285), (2721, 79985), (2823, 77095), (4535, 47991), (4705, 46257), (13605, 15997), (14115, 15419)]