20115765

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{9511}}^1$

素因数の和:9569

約数の個数: 24

約数和(自身を含む): 35612928

約数和(自身を除く): 15497163

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 9511, 28533, 47555, 85599, 142665, 427995, 447017, 1341051, 2235085, 4023153, 6705255, 20115765]

約数ペア:

[(1, 20115765), (3, 6705255), (5, 4023153), (9, 2235085), (15, 1341051), (45, 447017), (47, 427995), (141, 142665), (235, 85599), (423, 47555), (705, 28533), (2115, 9511)]