18904574

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{313}}^1$

素因数の和:452

約数の個数: 32

約数和(自身を含む): 32284224

約数和(自身を除く): 13379650

約数列:

[1, 2, 13, 23, 26, 46, 101, 202, 299, 313, 598, 626, 1313, 2323, 2626, 4069, 4646, 7199, 8138, 14398, 30199, 31613, 60398, 63226, 93587, 187174, 410969, 727099, 821938, 1454198, 9452287, 18904574]

約数ペア:

[(1, 18904574), (2, 9452287), (13, 1454198), (23, 821938), (26, 727099), (46, 410969), (101, 187174), (202, 93587), (299, 63226), (313, 60398), (598, 31613), (626, 30199), (1313, 14398), (2323, 8138), (2626, 7199), (4069, 4646)]