21308854

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{89533}}^1$

素因数の和:89559

約数の個数: 16

約数和(自身を含む): 38678688

約数和(自身を除く): 17369834

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 89533, 179066, 626731, 1253462, 1522061, 3044122, 10654427, 21308854]

約数ペア:

[(1, 21308854), (2, 10654427), (7, 3044122), (14, 1522061), (17, 1253462), (34, 626731), (119, 179066), (238, 89533)]