20237805

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1567}}^1$

素因数の和:1626

約数の個数: 48

約数和(自身を含む): 41094144

約数和(自身を除く): 20856339

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 41, 45, 63, 105, 123, 205, 287, 315, 369, 615, 861, 1435, 1567, 1845, 2583, 4305, 4701, 7835, 10969, 12915, 14103, 23505, 32907, 54845, 64247, 70515, 98721, 164535, 192741, 321235, 449729, 493605, 578223, 963705, 1349187, 2248645, 2891115, 4047561, 6745935, 20237805]

約数ペア:

[(1, 20237805), (3, 6745935), (5, 4047561), (7, 2891115), (9, 2248645), (15, 1349187), (21, 963705), (35, 578223), (41, 493605), (45, 449729), (63, 321235), (105, 192741), (123, 164535), (205, 98721), (287, 70515), (315, 64247), (369, 54845), (615, 32907), (861, 23505), (1435, 14103), (1567, 12915), (1845, 10969), (2583, 7835), (4305, 4701)]