20227977

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{101}}^1$

素因数の和:159

約数の個数: 72

約数和(自身を含む): 39079872

約数和(自身を除く): 18851895

約数列:

[1, 3, 7, 9, 11, 17, 21, 33, 51, 63, 77, 99, 101, 119, 153, 187, 231, 289, 303, 357, 561, 693, 707, 867, 909, 1071, 1111, 1309, 1683, 1717, 2023, 2121, 2601, 3179, 3333, 3927, 5151, 6069, 6363, 7777, 9537, 9999, 11781, 12019, 15453, 18207, 18887, 22253, 23331, 28611, 29189, 36057, 56661, 66759, 69993, 87567, 108171, 132209, 169983, 200277, 204323, 262701, 321079, 396627, 612969, 963237, 1189881, 1838907, 2247553, 2889711, 6742659, 20227977]

約数ペア:

[(1, 20227977), (3, 6742659), (7, 2889711), (9, 2247553), (11, 1838907), (17, 1189881), (21, 963237), (33, 612969), (51, 396627), (63, 321079), (77, 262701), (99, 204323), (101, 200277), (119, 169983), (153, 132209), (187, 108171), (231, 87567), (289, 69993), (303, 66759), (357, 56661), (561, 36057), (693, 29189), (707, 28611), (867, 23331), (909, 22253), (1071, 18887), (1111, 18207), (1309, 15453), (1683, 12019), (1717, 11781), (2023, 9999), (2121, 9537), (2601, 7777), (3179, 6363), (3333, 6069), (3927, 5151)]