21560624

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2557}}^1$

素因数の和:2613

約数の個数: 40

約数和(自身を含む): 45675648

約数和(自身を除く): 24115024

約数列:

[1, 2, 4, 8, 16, 17, 31, 34, 62, 68, 124, 136, 248, 272, 496, 527, 1054, 2108, 2557, 4216, 5114, 8432, 10228, 20456, 40912, 43469, 79267, 86938, 158534, 173876, 317068, 347752, 634136, 695504, 1268272, 1347539, 2695078, 5390156, 10780312, 21560624]

約数ペア:

[(1, 21560624), (2, 10780312), (4, 5390156), (8, 2695078), (16, 1347539), (17, 1268272), (31, 695504), (34, 634136), (62, 347752), (68, 317068), (124, 173876), (136, 158534), (248, 86938), (272, 79267), (496, 43469), (527, 40912), (1054, 20456), (2108, 10228), (2557, 8432), (4216, 5114)]