20721414

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{70481}}^1$

素因数の和:70500

約数の個数: 24

約数和(自身を含む): 48209688

約数和(自身を除く): 27488274

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 70481, 140962, 211443, 422886, 493367, 986734, 1480101, 2960202, 3453569, 6907138, 10360707, 20721414]

約数ペア:

[(1, 20721414), (2, 10360707), (3, 6907138), (6, 3453569), (7, 2960202), (14, 1480101), (21, 986734), (42, 493367), (49, 422886), (98, 211443), (147, 140962), (294, 70481)]