20941902

素因数分解:

$2^1\times 3^4\times {\mathrm{257}}^1\times {\mathrm{503}}^1$

素因数の和:774

約数の個数: 40

約数和(自身を含む): 47201616

約数和(自身を除く): 26259714

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 257, 503, 514, 771, 1006, 1509, 1542, 2313, 3018, 4527, 4626, 6939, 9054, 13581, 13878, 20817, 27162, 40743, 41634, 81486, 129271, 258542, 387813, 775626, 1163439, 2326878, 3490317, 6980634, 10470951, 20941902]

約数ペア:

[(1, 20941902), (2, 10470951), (3, 6980634), (6, 3490317), (9, 2326878), (18, 1163439), (27, 775626), (54, 387813), (81, 258542), (162, 129271), (257, 81486), (503, 41634), (514, 40743), (771, 27162), (1006, 20817), (1509, 13878), (1542, 13581), (2313, 9054), (3018, 6939), (4527, 4626)]