21291239655

素因数分解:

$3^2\times 5^1\times 7^4\times {\mathrm{197059}}^1$

素因数の和:197098

約数の個数: 60

約数和(自身を含む): 43053274680

約数和(自身を除く): 21762035025

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 343, 441, 735, 1029, 1715, 2205, 2401, 3087, 5145, 7203, 12005, 15435, 21609, 36015, 108045, 197059, 591177, 985295, 1379413, 1773531, 2955885, 4138239, 6897065, 8867655, 9655891, 12414717, 20691195, 28967673, 48279455, 62073585, 67591237, 86903019, 144838365, 202773711, 337956185, 434515095, 473138659, 608321133, 1013868555, 1419415977, 2365693295, 3041605665, 4258247931, 7097079885, 21291239655]

約数ペア:

[(1, 21291239655), (3, 7097079885), (5, 4258247931), (7, 3041605665), (9, 2365693295), (15, 1419415977), (21, 1013868555), (35, 608321133), (45, 473138659), (49, 434515095), (63, 337956185), (105, 202773711), (147, 144838365), (245, 86903019), (315, 67591237), (343, 62073585), (441, 48279455), (735, 28967673), (1029, 20691195), (1715, 12414717), (2205, 9655891), (2401, 8867655), (3087, 6897065), (5145, 4138239), (7203, 2955885), (12005, 1773531), (15435, 1379413), (21609, 985295), (36015, 591177), (108045, 197059)]