25715781

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1847}}^1$

素因数の和:1890

約数の個数: 48

約数和(自身を含む): 48432384

約数和(自身を除く): 22716603

約数列:

[1, 3, 7, 9, 13, 17, 21, 39, 51, 63, 91, 117, 119, 153, 221, 273, 357, 663, 819, 1071, 1547, 1847, 1989, 4641, 5541, 12929, 13923, 16623, 24011, 31399, 38787, 72033, 94197, 116361, 168077, 216099, 219793, 282591, 408187, 504231, 659379, 1224561, 1512693, 1978137, 2857309, 3673683, 8571927, 25715781]

約数ペア:

[(1, 25715781), (3, 8571927), (7, 3673683), (9, 2857309), (13, 1978137), (17, 1512693), (21, 1224561), (39, 659379), (51, 504231), (63, 408187), (91, 282591), (117, 219793), (119, 216099), (153, 168077), (221, 116361), (273, 94197), (357, 72033), (663, 38787), (819, 31399), (1071, 24011), (1547, 16623), (1847, 13923), (1989, 12929), (4641, 5541)]