20778654

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{983}}^1$

素因数の和:1272

約数の個数: 32

約数和(自身を含む): 44964864

約数和(自身を除く): 24186210

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 271, 542, 813, 983, 1626, 1966, 2949, 3523, 5898, 7046, 10569, 12779, 21138, 25558, 38337, 76674, 266393, 532786, 799179, 1598358, 3463109, 6926218, 10389327, 20778654]

約数ペア:

[(1, 20778654), (2, 10389327), (3, 6926218), (6, 3463109), (13, 1598358), (26, 799179), (39, 532786), (78, 266393), (271, 76674), (542, 38337), (813, 25558), (983, 21138), (1626, 12779), (1966, 10569), (2949, 7046), (3523, 5898)]