645599817

素因数分解:

$3^2\times {\mathrm{41}}^2\times {\mathrm{139}}^1\times {\mathrm{307}}^1$

素因数の和:534

約数の個数: 36

約数和(自身を含む): 965844880

約数和(自身を除く): 320245063

約数列:

[1, 3, 9, 41, 123, 139, 307, 369, 417, 921, 1251, 1681, 2763, 5043, 5699, 12587, 15129, 17097, 37761, 42673, 51291, 113283, 128019, 233659, 384057, 516067, 700977, 1548201, 1749593, 2102931, 4644603, 5248779, 15746337, 71733313, 215199939, 645599817]

約数ペア:

[(1, 645599817), (3, 215199939), (9, 71733313), (41, 15746337), (123, 5248779), (139, 4644603), (307, 2102931), (369, 1749593), (417, 1548201), (921, 700977), (1251, 516067), (1681, 384057), (2763, 233659), (5043, 128019), (5699, 113283), (12587, 51291), (15129, 42673), (17097, 37761)]