20651916

素因数分解:

$2^2\times 3^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{317}}^1$

素因数の和:474

約数の個数: 48

約数和(自身を含む): 49684320

約数和(自身を除く): 29032404

約数列:

[1, 2, 3, 4, 6, 12, 61, 89, 122, 178, 183, 244, 267, 317, 356, 366, 534, 634, 732, 951, 1068, 1268, 1902, 3804, 5429, 10858, 16287, 19337, 21716, 28213, 32574, 38674, 56426, 58011, 65148, 77348, 84639, 112852, 116022, 169278, 232044, 338556, 1720993, 3441986, 5162979, 6883972, 10325958, 20651916]

約数ペア:

[(1, 20651916), (2, 10325958), (3, 6883972), (4, 5162979), (6, 3441986), (12, 1720993), (61, 338556), (89, 232044), (122, 169278), (178, 116022), (183, 112852), (244, 84639), (267, 77348), (317, 65148), (356, 58011), (366, 56426), (534, 38674), (634, 32574), (732, 28213), (951, 21716), (1068, 19337), (1268, 16287), (1902, 10858), (3804, 5429)]