18707533

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:181

約数の個数: 32

約数和(自身を含む): 22982400

約数和(自身を除く): 4274867

約数列:

[1, 13, 19, 23, 37, 89, 247, 299, 437, 481, 703, 851, 1157, 1691, 2047, 3293, 5681, 9139, 11063, 16169, 21983, 26611, 38893, 42809, 62567, 75739, 210197, 505609, 813371, 984607, 1439041, 18707533]

約数ペア:

[(1, 18707533), (13, 1439041), (19, 984607), (23, 813371), (37, 505609), (89, 210197), (247, 75739), (299, 62567), (437, 42809), (481, 38893), (703, 26611), (851, 21983), (1157, 16169), (1691, 11063), (2047, 9139), (3293, 5681)]