328809747

素因数分解:

$3^1\times 7^4\times {\mathrm{191}}^1\times {\mathrm{239}}^1$

素因数の和:461

約数の個数: 40

約数和(自身を含む): 516280320

約数和(自身を除く): 187470573

約数列:

[1, 3, 7, 21, 49, 147, 191, 239, 343, 573, 717, 1029, 1337, 1673, 2401, 4011, 5019, 7203, 9359, 11711, 28077, 35133, 45649, 65513, 81977, 136947, 196539, 245931, 319543, 458591, 573839, 958629, 1375773, 1721517, 2236801, 6710403, 15657607, 46972821, 109603249, 328809747]

約数ペア:

[(1, 328809747), (3, 109603249), (7, 46972821), (21, 15657607), (49, 6710403), (147, 2236801), (191, 1721517), (239, 1375773), (343, 958629), (573, 573839), (717, 458591), (1029, 319543), (1337, 245931), (1673, 196539), (2401, 136947), (4011, 81977), (5019, 65513), (7203, 45649), (9359, 35133), (11711, 28077)]