21087352

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{18433}}^1$

素因数の和:18463

約数の個数: 32

約数和(自身を含む): 46453680

約数和(自身を除く): 25366328

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 18433, 36866, 73732, 147464, 202763, 239629, 405526, 479258, 811052, 958516, 1622104, 1917032, 2635919, 5271838, 10543676, 21087352]

約数ペア:

[(1, 21087352), (2, 10543676), (4, 5271838), (8, 2635919), (11, 1917032), (13, 1622104), (22, 958516), (26, 811052), (44, 479258), (52, 405526), (88, 239629), (104, 202763), (143, 147464), (286, 73732), (572, 36866), (1144, 18433)]