19388565

素因数分解:

$3^4\times 5^1\times 7^2\times {\mathrm{977}}^1$

素因数の和:1008

約数の個数: 60

約数和(自身を含む): 40471596

約数和(自身を除く): 21083031

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 81, 105, 135, 147, 189, 245, 315, 405, 441, 567, 735, 945, 977, 1323, 2205, 2835, 2931, 3969, 4885, 6615, 6839, 8793, 14655, 19845, 20517, 26379, 34195, 43965, 47873, 61551, 79137, 102585, 131895, 143619, 184653, 239365, 307755, 395685, 430857, 553959, 718095, 923265, 1292571, 2154285, 2769795, 3877713, 6462855, 19388565]

約数ペア:

[(1, 19388565), (3, 6462855), (5, 3877713), (7, 2769795), (9, 2154285), (15, 1292571), (21, 923265), (27, 718095), (35, 553959), (45, 430857), (49, 395685), (63, 307755), (81, 239365), (105, 184653), (135, 143619), (147, 131895), (189, 102585), (245, 79137), (315, 61551), (405, 47873), (441, 43965), (567, 34195), (735, 26379), (945, 20517), (977, 19845), (1323, 14655), (2205, 8793), (2835, 6839), (2931, 6615), (3969, 4885)]