20878110

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21089}}^1$

素因数の和:21113

約数の個数: 48

約数和(自身を含む): 59220720

約数和(自身を除く): 38342610

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 21089, 42178, 63267, 105445, 126534, 189801, 210890, 231979, 316335, 379602, 463958, 632670, 695937, 949005, 1159895, 1391874, 1898010, 2087811, 2319790, 3479685, 4175622, 6959370, 10439055, 20878110]

約数ペア:

[(1, 20878110), (2, 10439055), (3, 6959370), (5, 4175622), (6, 3479685), (9, 2319790), (10, 2087811), (11, 1898010), (15, 1391874), (18, 1159895), (22, 949005), (30, 695937), (33, 632670), (45, 463958), (55, 379602), (66, 316335), (90, 231979), (99, 210890), (110, 189801), (165, 126534), (198, 105445), (330, 63267), (495, 42178), (990, 21089)]