18109413

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^2$

素因数の和:120

約数の個数: 60

約数和(自身を含む): 33357280

約数和(自身を除く): 15247867

約数列:

[1, 3, 7, 9, 19, 21, 27, 41, 57, 63, 81, 123, 133, 171, 189, 287, 369, 399, 513, 567, 779, 861, 1107, 1197, 1539, 1681, 2337, 2583, 3321, 3591, 5043, 5453, 7011, 7749, 10773, 11767, 15129, 16359, 21033, 23247, 31939, 35301, 45387, 49077, 63099, 95817, 105903, 136161, 147231, 223573, 287451, 317709, 441693, 670719, 862353, 953127, 2012157, 2587059, 6036471, 18109413]

約数ペア:

[(1, 18109413), (3, 6036471), (7, 2587059), (9, 2012157), (19, 953127), (21, 862353), (27, 670719), (41, 441693), (57, 317709), (63, 287451), (81, 223573), (123, 147231), (133, 136161), (171, 105903), (189, 95817), (287, 63099), (369, 49077), (399, 45387), (513, 35301), (567, 31939), (779, 23247), (861, 21033), (1107, 16359), (1197, 15129), (1539, 11767), (1681, 10773), (2337, 7749), (2583, 7011), (3321, 5453), (3591, 5043)]