407418417

素因数分解:

$3^9\times 7^1\times {\mathrm{2957}}^1$

素因数の和:2991

約数の個数: 40

約数和(自身を含む): 698655936

約数和(自身を除く): 291237519

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 2187, 2957, 5103, 6561, 8871, 15309, 19683, 20699, 26613, 45927, 62097, 79839, 137781, 186291, 239517, 558873, 718551, 1676619, 2155653, 5029857, 6466959, 15089571, 19400877, 45268713, 58202631, 135806139, 407418417]

約数ペア:

[(1, 407418417), (3, 135806139), (7, 58202631), (9, 45268713), (21, 19400877), (27, 15089571), (63, 6466959), (81, 5029857), (189, 2155653), (243, 1676619), (567, 718551), (729, 558873), (1701, 239517), (2187, 186291), (2957, 137781), (5103, 79839), (6561, 62097), (8871, 45927), (15309, 26613), (19683, 20699)]