21215646

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{419}}^1$

素因数の和:553

約数の個数: 48

約数和(自身を含む): 48157200

約数和(自身を除く): 26941554

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 87, 97, 174, 194, 261, 291, 419, 522, 582, 838, 873, 1257, 1746, 2514, 2813, 3771, 5626, 7542, 8439, 12151, 16878, 24302, 25317, 36453, 40643, 50634, 72906, 81286, 109359, 121929, 218718, 243858, 365787, 731574, 1178647, 2357294, 3535941, 7071882, 10607823, 21215646]

約数ペア:

[(1, 21215646), (2, 10607823), (3, 7071882), (6, 3535941), (9, 2357294), (18, 1178647), (29, 731574), (58, 365787), (87, 243858), (97, 218718), (174, 121929), (194, 109359), (261, 81286), (291, 72906), (419, 50634), (522, 40643), (582, 36453), (838, 25317), (873, 24302), (1257, 16878), (1746, 12151), (2514, 8439), (2813, 7542), (3771, 5626)]