21491688

素因数分解:

$2^3\times 3^1\times {\mathrm{83}}^1\times {\mathrm{10789}}^1$

素因数の和:10881

約数の個数: 32

約数和(自身を含む): 54381600

約数和(自身を除く): 32889912

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 83, 166, 249, 332, 498, 664, 996, 1992, 10789, 21578, 32367, 43156, 64734, 86312, 129468, 258936, 895487, 1790974, 2686461, 3581948, 5372922, 7163896, 10745844, 21491688]

約数ペア:

[(1, 21491688), (2, 10745844), (3, 7163896), (4, 5372922), (6, 3581948), (8, 2686461), (12, 1790974), (24, 895487), (83, 258936), (166, 129468), (249, 86312), (332, 64734), (498, 43156), (664, 32367), (996, 21578), (1992, 10789)]