21999252

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:277

約数の個数: 72

約数和(自身を含む): 57349600

約数和(自身を除く): 35350348

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 109, 121, 132, 139, 218, 242, 278, 327, 363, 417, 436, 484, 556, 654, 726, 834, 1199, 1308, 1452, 1529, 1668, 2398, 3058, 3597, 4587, 4796, 6116, 7194, 9174, 13189, 14388, 15151, 16819, 18348, 26378, 30302, 33638, 39567, 45453, 50457, 52756, 60604, 67276, 79134, 90906, 100914, 158268, 166661, 181812, 201828, 333322, 499983, 666644, 999966, 1833271, 1999932, 3666542, 5499813, 7333084, 10999626, 21999252]

約数ペア:

[(1, 21999252), (2, 10999626), (3, 7333084), (4, 5499813), (6, 3666542), (11, 1999932), (12, 1833271), (22, 999966), (33, 666644), (44, 499983), (66, 333322), (109, 201828), (121, 181812), (132, 166661), (139, 158268), (218, 100914), (242, 90906), (278, 79134), (327, 67276), (363, 60604), (417, 52756), (436, 50457), (484, 45453), (556, 39567), (654, 33638), (726, 30302), (834, 26378), (1199, 18348), (1308, 16819), (1452, 15151), (1529, 14388), (1668, 13189), (2398, 9174), (3058, 7194), (3597, 6116), (4587, 4796)]