19685809

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1$

素因数の和:201

約数の個数: 32

約数和(自身を含む): 24675840

約数和(自身を除く): 4990031

約数列:

[1, 11, 13, 29, 47, 101, 143, 319, 377, 517, 611, 1111, 1313, 1363, 2929, 4147, 4747, 6721, 14443, 14993, 17719, 32219, 38077, 52217, 61711, 137663, 194909, 418847, 678821, 1514293, 1789619, 19685809]

約数ペア:

[(1, 19685809), (11, 1789619), (13, 1514293), (29, 678821), (47, 418847), (101, 194909), (143, 137663), (319, 61711), (377, 52217), (517, 38077), (611, 32219), (1111, 17719), (1313, 14993), (1363, 14443), (2929, 6721), (4147, 4747)]