20788284

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:271

約数の個数: 72

約数和(自身を含む): 54221440

約数和(自身を除く): 33433156

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 103, 121, 132, 139, 206, 242, 278, 309, 363, 412, 417, 484, 556, 618, 726, 834, 1133, 1236, 1452, 1529, 1668, 2266, 3058, 3399, 4532, 4587, 6116, 6798, 9174, 12463, 13596, 14317, 16819, 18348, 24926, 28634, 33638, 37389, 42951, 49852, 50457, 57268, 67276, 74778, 85902, 100914, 149556, 157487, 171804, 201828, 314974, 472461, 629948, 944922, 1732357, 1889844, 3464714, 5197071, 6929428, 10394142, 20788284]

約数ペア:

[(1, 20788284), (2, 10394142), (3, 6929428), (4, 5197071), (6, 3464714), (11, 1889844), (12, 1732357), (22, 944922), (33, 629948), (44, 472461), (66, 314974), (103, 201828), (121, 171804), (132, 157487), (139, 149556), (206, 100914), (242, 85902), (278, 74778), (309, 67276), (363, 57268), (412, 50457), (417, 49852), (484, 42951), (556, 37389), (618, 33638), (726, 28634), (834, 24926), (1133, 18348), (1236, 16819), (1452, 14317), (1529, 13596), (1668, 12463), (2266, 9174), (3058, 6798), (3399, 6116), (4532, 4587)]