20421654

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{1223}}^1$

素因数の和:1273

約数の個数: 48

約数和(自身を含む): 46884096

約数和(自身を除く): 26462442

約数列:

[1, 2, 3, 6, 11, 22, 23, 33, 46, 66, 69, 121, 138, 242, 253, 363, 506, 726, 759, 1223, 1518, 2446, 2783, 3669, 5566, 7338, 8349, 13453, 16698, 26906, 28129, 40359, 56258, 80718, 84387, 147983, 168774, 295966, 309419, 443949, 618838, 887898, 928257, 1856514, 3403609, 6807218, 10210827, 20421654]

約数ペア:

[(1, 20421654), (2, 10210827), (3, 6807218), (6, 3403609), (11, 1856514), (22, 928257), (23, 887898), (33, 618838), (46, 443949), (66, 309419), (69, 295966), (121, 168774), (138, 147983), (242, 84387), (253, 80718), (363, 56258), (506, 40359), (726, 28129), (759, 26906), (1223, 16698), (1518, 13453), (2446, 8349), (2783, 7338), (3669, 5566)]