20481195

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1489}}^1$

素因数の和:1635

約数の個数: 32

約数和(自身を含む): 37762560

約数和(自身を除く): 17281365

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 131, 393, 655, 917, 1489, 1965, 2751, 4467, 4585, 7445, 10423, 13755, 22335, 31269, 52115, 156345, 195059, 585177, 975295, 1365413, 2925885, 4096239, 6827065, 20481195]

約数ペア:

[(1, 20481195), (3, 6827065), (5, 4096239), (7, 2925885), (15, 1365413), (21, 975295), (35, 585177), (105, 195059), (131, 156345), (393, 52115), (655, 31269), (917, 22335), (1489, 13755), (1965, 10423), (2751, 7445), (4467, 4585)]