18720435

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{317}}^1$

素因数の和:483

約数の個数: 32

約数和(自身を含む): 31260672

約数和(自身を除く): 12540237

約数列:

[1, 3, 5, 15, 31, 93, 127, 155, 317, 381, 465, 635, 951, 1585, 1905, 3937, 4755, 9827, 11811, 19685, 29481, 40259, 49135, 59055, 120777, 147405, 201295, 603885, 1248029, 3744087, 6240145, 18720435]

約数ペア:

[(1, 18720435), (3, 6240145), (5, 3744087), (15, 1248029), (31, 603885), (93, 201295), (127, 147405), (155, 120777), (317, 59055), (381, 49135), (465, 40259), (635, 29481), (951, 19685), (1585, 11811), (1905, 9827), (3937, 4755)]