21494902

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4421}}^1$

素因数の和:4464

約数の個数: 32

約数和(自身を含む): 40116384

約数和(自身を除く): 18621482

約数列:

[1, 2, 11, 13, 17, 22, 26, 34, 143, 187, 221, 286, 374, 442, 2431, 4421, 4862, 8842, 48631, 57473, 75157, 97262, 114946, 150314, 632203, 826727, 977041, 1264406, 1653454, 1954082, 10747451, 21494902]

約数ペア:

[(1, 21494902), (2, 10747451), (11, 1954082), (13, 1653454), (17, 1264406), (22, 977041), (26, 826727), (34, 632203), (143, 150314), (187, 114946), (221, 97262), (286, 75157), (374, 57473), (442, 48631), (2431, 8842), (4421, 4862)]