18416905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 25288704

約数和(自身を除く): 6871799

約数列:

[1, 5, 13, 23, 65, 97, 115, 127, 299, 485, 635, 1261, 1495, 1651, 2231, 2921, 6305, 8255, 11155, 12319, 14605, 29003, 37973, 61595, 145015, 160147, 189865, 283337, 800735, 1416685, 3683381, 18416905]

約数ペア:

[(1, 18416905), (5, 3683381), (13, 1416685), (23, 800735), (65, 283337), (97, 189865), (115, 160147), (127, 145015), (299, 61595), (485, 37973), (635, 29003), (1261, 14605), (1495, 12319), (1651, 11155), (2231, 8255), (2921, 6305)]