21131710

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{1163}}^1$

素因数の和:1272

約数の個数: 32

約数和(自身を含む): 40227840

約数和(自身を除く): 19096130

約数列:

[1, 2, 5, 10, 23, 46, 79, 115, 158, 230, 395, 790, 1163, 1817, 2326, 3634, 5815, 9085, 11630, 18170, 26749, 53498, 91877, 133745, 183754, 267490, 459385, 918770, 2113171, 4226342, 10565855, 21131710]

約数ペア:

[(1, 21131710), (2, 10565855), (5, 4226342), (10, 2113171), (23, 918770), (46, 459385), (79, 267490), (115, 183754), (158, 133745), (230, 91877), (395, 53498), (790, 26749), (1163, 18170), (1817, 11630), (2326, 9085), (3634, 5815)]