19954188

素因数分解:

$2^2\times 3^7\times {\mathrm{2281}}^1$

素因数の和:2306

約数の個数: 48

約数和(自身を含む): 52394720

約数和(自身を除く): 32440532

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 729, 972, 1458, 2187, 2281, 2916, 4374, 4562, 6843, 8748, 9124, 13686, 20529, 27372, 41058, 61587, 82116, 123174, 184761, 246348, 369522, 554283, 739044, 1108566, 1662849, 2217132, 3325698, 4988547, 6651396, 9977094, 19954188]

約数ペア:

[(1, 19954188), (2, 9977094), (3, 6651396), (4, 4988547), (6, 3325698), (9, 2217132), (12, 1662849), (18, 1108566), (27, 739044), (36, 554283), (54, 369522), (81, 246348), (108, 184761), (162, 123174), (243, 82116), (324, 61587), (486, 41058), (729, 27372), (972, 20529), (1458, 13686), (2187, 9124), (2281, 8748), (2916, 6843), (4374, 4562)]