31971915

素因数分解:

$3^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{887}}^1$

素因数の和:993

約数の個数: 40

約数和(自身を含む): 58021920

約数和(自身を除く): 26050005

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 89, 135, 267, 405, 445, 801, 887, 1335, 2403, 2661, 4005, 4435, 7209, 7983, 12015, 13305, 23949, 36045, 39915, 71847, 78943, 119745, 236829, 359235, 394715, 710487, 1184145, 2131461, 3552435, 6394383, 10657305, 31971915]

約数ペア:

[(1, 31971915), (3, 10657305), (5, 6394383), (9, 3552435), (15, 2131461), (27, 1184145), (45, 710487), (81, 394715), (89, 359235), (135, 236829), (267, 119745), (405, 78943), (445, 71847), (801, 39915), (887, 36045), (1335, 23949), (2403, 13305), (2661, 12015), (4005, 7983), (4435, 7209)]