19994535

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1303}}^1$

素因数の和:1356

約数の個数: 48

約数和(自身を含む): 39057408

約数和(自身を除く): 19062873

約数列:

[1, 3, 5, 9, 11, 15, 31, 33, 45, 55, 93, 99, 155, 165, 279, 341, 465, 495, 1023, 1303, 1395, 1705, 3069, 3909, 5115, 6515, 11727, 14333, 15345, 19545, 40393, 42999, 58635, 71665, 121179, 128997, 201965, 214995, 363537, 444323, 605895, 644985, 1332969, 1817685, 2221615, 3998907, 6664845, 19994535]

約数ペア:

[(1, 19994535), (3, 6664845), (5, 3998907), (9, 2221615), (11, 1817685), (15, 1332969), (31, 644985), (33, 605895), (45, 444323), (55, 363537), (93, 214995), (99, 201965), (155, 128997), (165, 121179), (279, 71665), (341, 58635), (465, 42999), (495, 40393), (1023, 19545), (1303, 15345), (1395, 14333), (1705, 11727), (3069, 6515), (3909, 5115)]