991845

素因数分解:

$3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:127

約数の個数: 40

約数和(自身を含む): 1858560

約数和(自身を除く): 866715

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 79, 81, 93, 135, 155, 237, 279, 395, 405, 465, 711, 837, 1185, 1395, 2133, 2449, 2511, 3555, 4185, 6399, 7347, 10665, 12245, 12555, 22041, 31995, 36735, 66123, 110205, 198369, 330615, 991845]

約数ペア:

[(1, 991845), (3, 330615), (5, 198369), (9, 110205), (15, 66123), (27, 36735), (31, 31995), (45, 22041), (79, 12555), (81, 12245), (93, 10665), (135, 7347), (155, 6399), (237, 4185), (279, 3555), (395, 2511), (405, 2449), (465, 2133), (711, 1395), (837, 1185)]