20355699

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{431}}^1$

素因数の和:627

約数の個数: 32

約数和(自身を含む): 33675264

約数和(自身を除く): 13319565

約数列:

[1, 3, 7, 13, 21, 39, 91, 173, 273, 431, 519, 1211, 1293, 2249, 3017, 3633, 5603, 6747, 9051, 15743, 16809, 39221, 47229, 74563, 117663, 223689, 521941, 969319, 1565823, 2907957, 6785233, 20355699]

約数ペア:

[(1, 20355699), (3, 6785233), (7, 2907957), (13, 1565823), (21, 969319), (39, 521941), (91, 223689), (173, 117663), (273, 74563), (431, 47229), (519, 39221), (1211, 16809), (1293, 15743), (2249, 9051), (3017, 6747), (3633, 5603)]