21266120

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{14369}}^1$

素因数の和:14417

約数の個数: 32

約数和(自身を含む): 49145400

約数和(自身を除く): 27879280

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 14369, 28738, 57476, 71845, 114952, 143690, 287380, 531653, 574760, 1063306, 2126612, 2658265, 4253224, 5316530, 10633060, 21266120]

約数ペア:

[(1, 21266120), (2, 10633060), (4, 5316530), (5, 4253224), (8, 2658265), (10, 2126612), (20, 1063306), (37, 574760), (40, 531653), (74, 287380), (148, 143690), (185, 114952), (296, 71845), (370, 57476), (740, 28738), (1480, 14369)]