21010536

素因数分解:

$2^3\times 3^3\times {\mathrm{211}}^1\times {\mathrm{461}}^1$

素因数の和:687

約数の個数: 64

約数和(自身を含む): 58766400

約数和(自身を除く): 37755864

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 211, 216, 422, 461, 633, 844, 922, 1266, 1383, 1688, 1844, 1899, 2532, 2766, 3688, 3798, 4149, 5064, 5532, 5697, 7596, 8298, 11064, 11394, 12447, 15192, 16596, 22788, 24894, 33192, 45576, 49788, 97271, 99576, 194542, 291813, 389084, 583626, 778168, 875439, 1167252, 1750878, 2334504, 2626317, 3501756, 5252634, 7003512, 10505268, 21010536]

約数ペア:

[(1, 21010536), (2, 10505268), (3, 7003512), (4, 5252634), (6, 3501756), (8, 2626317), (9, 2334504), (12, 1750878), (18, 1167252), (24, 875439), (27, 778168), (36, 583626), (54, 389084), (72, 291813), (108, 194542), (211, 99576), (216, 97271), (422, 49788), (461, 45576), (633, 33192), (844, 24894), (922, 22788), (1266, 16596), (1383, 15192), (1688, 12447), (1844, 11394), (1899, 11064), (2532, 8298), (2766, 7596), (3688, 5697), (3798, 5532), (4149, 5064)]