21291894

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4789}}^1$

素因数の和:4829

約数の個数: 48

約数和(自身を含む): 52306800

約数和(自身を除く): 31014906

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 38, 39, 57, 78, 114, 117, 171, 234, 247, 342, 494, 741, 1482, 2223, 4446, 4789, 9578, 14367, 28734, 43101, 62257, 86202, 90991, 124514, 181982, 186771, 272973, 373542, 545946, 560313, 818919, 1120626, 1182883, 1637838, 2365766, 3548649, 7097298, 10645947, 21291894]

約数ペア:

[(1, 21291894), (2, 10645947), (3, 7097298), (6, 3548649), (9, 2365766), (13, 1637838), (18, 1182883), (19, 1120626), (26, 818919), (38, 560313), (39, 545946), (57, 373542), (78, 272973), (114, 186771), (117, 181982), (171, 124514), (234, 90991), (247, 86202), (342, 62257), (494, 43101), (741, 28734), (1482, 14367), (2223, 9578), (4446, 4789)]