20681612

素因数分解:

$2^2\times 7^1\times {\mathrm{601}}^1\times {\mathrm{1229}}^1$

素因数の和:1841

約数の個数: 24

約数和(自身を含む): 41465760

約数和(自身を除く): 20784148

約数列:

[1, 2, 4, 7, 14, 28, 601, 1202, 1229, 2404, 2458, 4207, 4916, 8414, 8603, 16828, 17206, 34412, 738629, 1477258, 2954516, 5170403, 10340806, 20681612]

約数ペア:

[(1, 20681612), (2, 10340806), (4, 5170403), (7, 2954516), (14, 1477258), (28, 738629), (601, 34412), (1202, 17206), (1229, 16828), (2404, 8603), (2458, 8414), (4207, 4916)]