21119256

素因数分解:

$2^3\times 3^2\times {\mathrm{521}}^1\times {\mathrm{563}}^1$

素因数の和:1096

約数の個数: 48

約数和(自身を含む): 57409560

約数和(自身を除く): 36290304

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 521, 563, 1042, 1126, 1563, 1689, 2084, 2252, 3126, 3378, 4168, 4504, 4689, 5067, 6252, 6756, 9378, 10134, 12504, 13512, 18756, 20268, 37512, 40536, 293323, 586646, 879969, 1173292, 1759938, 2346584, 2639907, 3519876, 5279814, 7039752, 10559628, 21119256]

約数ペア:

[(1, 21119256), (2, 10559628), (3, 7039752), (4, 5279814), (6, 3519876), (8, 2639907), (9, 2346584), (12, 1759938), (18, 1173292), (24, 879969), (36, 586646), (72, 293323), (521, 40536), (563, 37512), (1042, 20268), (1126, 18756), (1563, 13512), (1689, 12504), (2084, 10134), (2252, 9378), (3126, 6756), (3378, 6252), (4168, 5067), (4504, 4689)]