20512019997

素因数分解:

$3^2\times 7^2\times {\mathrm{463}}^1\times {\mathrm{100459}}^1$

素因数の和:100942

約数の個数: 36

約数和(自身を含む): 34540559040

約数和(自身を除く): 14028539043

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 463, 1389, 3241, 4167, 9723, 22687, 29169, 68061, 100459, 204183, 301377, 703213, 904131, 2109639, 4922491, 6328917, 14767473, 44302419, 46512517, 139537551, 325587619, 418612653, 976762857, 2279113333, 2930288571, 6837339999, 20512019997]

約数ペア:

[(1, 20512019997), (3, 6837339999), (7, 2930288571), (9, 2279113333), (21, 976762857), (49, 418612653), (63, 325587619), (147, 139537551), (441, 46512517), (463, 44302419), (1389, 14767473), (3241, 6328917), (4167, 4922491), (9723, 2109639), (22687, 904131), (29169, 703213), (68061, 301377), (100459, 204183)]