19907966

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{14447}}^1$

素因数の和:14515

約数の個数: 16

約数和(自身を含む): 32768064

約数和(自身を除く): 12860098

約数列:

[1, 2, 13, 26, 53, 106, 689, 1378, 14447, 28894, 187811, 375622, 765691, 1531382, 9953983, 19907966]

約数ペア:

[(1, 19907966), (2, 9953983), (13, 1531382), (26, 765691), (53, 375622), (106, 187811), (689, 28894), (1378, 14447)]