678654909

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{997}}^1\times {\mathrm{1483}}^1$

素因数の和:2506

約数の個数: 32

約数和(自身を含む): 1066343040

約数和(自身を除く): 387688131

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 997, 1483, 2991, 4449, 8973, 13347, 16949, 25211, 26919, 40041, 50847, 75633, 152541, 226899, 457623, 680697, 1478551, 4435653, 13306959, 25135367, 39920877, 75406101, 226218303, 678654909]

約数ペア:

[(1, 678654909), (3, 226218303), (9, 75406101), (17, 39920877), (27, 25135367), (51, 13306959), (153, 4435653), (459, 1478551), (997, 680697), (1483, 457623), (2991, 226899), (4449, 152541), (8973, 75633), (13347, 50847), (16949, 40041), (25211, 26919)]