21996846

素因数分解:

$2^1\times 3^7\times {\mathrm{47}}^1\times {\mathrm{107}}^1$

素因数の和:177

約数の個数: 64

約数和(自身を含む): 51010560

約数和(自身を除く): 29013714

約数列:

[1, 2, 3, 6, 9, 18, 27, 47, 54, 81, 94, 107, 141, 162, 214, 243, 282, 321, 423, 486, 642, 729, 846, 963, 1269, 1458, 1926, 2187, 2538, 2889, 3807, 4374, 5029, 5778, 7614, 8667, 10058, 11421, 15087, 17334, 22842, 26001, 30174, 34263, 45261, 52002, 68526, 78003, 90522, 102789, 135783, 156006, 205578, 234009, 271566, 407349, 468018, 814698, 1222047, 2444094, 3666141, 7332282, 10998423, 21996846]

約数ペア:

[(1, 21996846), (2, 10998423), (3, 7332282), (6, 3666141), (9, 2444094), (18, 1222047), (27, 814698), (47, 468018), (54, 407349), (81, 271566), (94, 234009), (107, 205578), (141, 156006), (162, 135783), (214, 102789), (243, 90522), (282, 78003), (321, 68526), (423, 52002), (486, 45261), (642, 34263), (729, 30174), (846, 26001), (963, 22842), (1269, 17334), (1458, 15087), (1926, 11421), (2187, 10058), (2538, 8667), (2889, 7614), (3807, 5778), (4374, 5029)]