217873335

素因数分解:

$3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{293}}^1\times {\mathrm{557}}^1$

素因数の和:947

約数の個数: 32

約数和(自身を含む): 354352320

約数和(自身を除く): 136478985

約数列:

[1, 3, 5, 15, 89, 267, 293, 445, 557, 879, 1335, 1465, 1671, 2785, 4395, 8355, 26077, 49573, 78231, 130385, 148719, 163201, 247865, 391155, 489603, 743595, 816005, 2448015, 14524889, 43574667, 72624445, 217873335]

約数ペア:

[(1, 217873335), (3, 72624445), (5, 43574667), (15, 14524889), (89, 2448015), (267, 816005), (293, 743595), (445, 489603), (557, 391155), (879, 247865), (1335, 163201), (1465, 148719), (1671, 130385), (2785, 78231), (4395, 49573), (8355, 26077)]