21493070

素因数分解:

$2^1\times 5^1\times {\mathrm{307}}^1\times {\mathrm{7001}}^1$

素因数の和:7315

約数の個数: 16

約数和(自身を含む): 38819088

約数和(自身を除く): 17326018

約数列:

[1, 2, 5, 10, 307, 614, 1535, 3070, 7001, 14002, 35005, 70010, 2149307, 4298614, 10746535, 21493070]

約数ペア:

[(1, 21493070), (2, 10746535), (5, 4298614), (10, 2149307), (307, 70010), (614, 35005), (1535, 14002), (3070, 7001)]