18520245

素因数分解:

$3^6\times 5^1\times {\mathrm{5081}}^1$

素因数の和:5104

約数の個数: 28

約数和(自身を含む): 33327756

約数和(自身を除く): 14807511

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 3645, 5081, 15243, 25405, 45729, 76215, 137187, 228645, 411561, 685935, 1234683, 2057805, 3704049, 6173415, 18520245]

約数ペア:

[(1, 18520245), (3, 6173415), (5, 3704049), (9, 2057805), (15, 1234683), (27, 685935), (45, 411561), (81, 228645), (135, 137187), (243, 76215), (405, 45729), (729, 25405), (1215, 15243), (3645, 5081)]