18495891

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1$

素因数の和:320

約数の個数: 32

約数和(自身を含む): 28512000

約数和(自身を除く): 10016109

約数列:

[1, 3, 9, 27, 43, 89, 129, 179, 267, 387, 537, 801, 1161, 1611, 2403, 3827, 4833, 7697, 11481, 15931, 23091, 34443, 47793, 69273, 103329, 143379, 207819, 430137, 685033, 2055099, 6165297, 18495891]

約数ペア:

[(1, 18495891), (3, 6165297), (9, 2055099), (27, 685033), (43, 430137), (89, 207819), (129, 143379), (179, 103329), (267, 69273), (387, 47793), (537, 34443), (801, 23091), (1161, 15931), (1611, 11481), (2403, 7697), (3827, 4833)]