19786390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{152203}}^1$

素因数の和:152223

約数の個数: 16

約数和(自身を含む): 38355408

約数和(自身を除く): 18569018

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 152203, 304406, 761015, 1522030, 1978639, 3957278, 9893195, 19786390]

約数ペア:

[(1, 19786390), (2, 9893195), (5, 3957278), (10, 1978639), (13, 1522030), (26, 761015), (65, 304406), (130, 152203)]