18979950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{11503}}^1$

素因数の和:11529

約数の個数: 48

約数和(自身を含む): 51353856

約数和(自身を除く): 32373906

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 25, 30, 33, 50, 55, 66, 75, 110, 150, 165, 275, 330, 550, 825, 1650, 11503, 23006, 34509, 57515, 69018, 115030, 126533, 172545, 253066, 287575, 345090, 379599, 575150, 632665, 759198, 862725, 1265330, 1725450, 1897995, 3163325, 3795990, 6326650, 9489975, 18979950]

約数ペア:

[(1, 18979950), (2, 9489975), (3, 6326650), (5, 3795990), (6, 3163325), (10, 1897995), (11, 1725450), (15, 1265330), (22, 862725), (25, 759198), (30, 632665), (33, 575150), (50, 379599), (55, 345090), (66, 287575), (75, 253066), (110, 172545), (150, 126533), (165, 115030), (275, 69018), (330, 57515), (550, 34509), (825, 23006), (1650, 11503)]