16980990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43541}}^1$

素因数の和:43564

約数の個数: 32

約数和(自身を含む): 43890336

約数和(自身を除く): 26909346

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 43541, 87082, 130623, 217705, 261246, 435410, 566033, 653115, 1132066, 1306230, 1698099, 2830165, 3396198, 5660330, 8490495, 16980990]

約数ペア:

[(1, 16980990), (2, 8490495), (3, 5660330), (5, 3396198), (6, 2830165), (10, 1698099), (13, 1306230), (15, 1132066), (26, 653115), (30, 566033), (39, 435410), (65, 261246), (78, 217705), (130, 130623), (195, 87082), (390, 43541)]