21391422

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{6689}}^1$

素因数の和:6748

約数の個数: 32

約数和(自身を含む): 47204640

約数和(自身を除く): 25813218

約数列:

[1, 2, 3, 6, 13, 26, 39, 41, 78, 82, 123, 246, 533, 1066, 1599, 3198, 6689, 13378, 20067, 40134, 86957, 173914, 260871, 274249, 521742, 548498, 822747, 1645494, 3565237, 7130474, 10695711, 21391422]

約数ペア:

[(1, 21391422), (2, 10695711), (3, 7130474), (6, 3565237), (13, 1645494), (26, 822747), (39, 548498), (41, 521742), (78, 274249), (82, 260871), (123, 173914), (246, 86957), (533, 40134), (1066, 20067), (1599, 13378), (3198, 6689)]