18087915

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{797}}^1$

素因数の和:911

約数の個数: 32

約数和(自身を含む): 31026240

約数和(自身を除く): 12938325

約数列:

[1, 3, 5, 15, 17, 51, 85, 89, 255, 267, 445, 797, 1335, 1513, 2391, 3985, 4539, 7565, 11955, 13549, 22695, 40647, 67745, 70933, 203235, 212799, 354665, 1063995, 1205861, 3617583, 6029305, 18087915]

約数ペア:

[(1, 18087915), (3, 6029305), (5, 3617583), (15, 1205861), (17, 1063995), (51, 354665), (85, 212799), (89, 203235), (255, 70933), (267, 67745), (445, 40647), (797, 22695), (1335, 13549), (1513, 11955), (2391, 7565), (3985, 4539)]