19966883671

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1\times {\mathrm{7247}}^1$

素因数の和:7543

約数の個数: 32

約数和(自身を含む): 24186286080

約数和(自身を除く): 4219402409

約数列:

[1, 7, 23, 109, 157, 161, 763, 1099, 2507, 3611, 7247, 17113, 17549, 25277, 50729, 119791, 166681, 393599, 789923, 1137779, 1166767, 2755193, 5529461, 7964453, 18168229, 26168917, 124017911, 127177603, 183182419, 868125377, 2852411953, 19966883671]

約数ペア:

[(1, 19966883671), (7, 2852411953), (23, 868125377), (109, 183182419), (157, 127177603), (161, 124017911), (763, 26168917), (1099, 18168229), (2507, 7964453), (3611, 5529461), (7247, 2755193), (17113, 1166767), (17549, 1137779), (25277, 789923), (50729, 393599), (119791, 166681)]