21492700705

素因数分解:

$5^1\times 7^3\times {\mathrm{431}}^1\times {\mathrm{29077}}^1$

素因数の和:29534

約数の個数: 32

約数和(自身を含む): 30148070400

約数和(自身を除く): 8655369695

約数列:

[1, 5, 7, 35, 49, 245, 343, 431, 1715, 2155, 3017, 15085, 21119, 29077, 105595, 145385, 147833, 203539, 739165, 1017695, 1424773, 7123865, 9973411, 12532187, 49867055, 62660935, 87725309, 438626545, 614077163, 3070385815, 4298540141, 21492700705]

約数ペア:

[(1, 21492700705), (5, 4298540141), (7, 3070385815), (35, 614077163), (49, 438626545), (245, 87725309), (343, 62660935), (431, 49867055), (1715, 12532187), (2155, 9973411), (3017, 7123865), (15085, 1424773), (21119, 1017695), (29077, 739165), (105595, 203539), (145385, 147833)]