21260850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{10903}}^1$

素因数の和:10931

約数の個数: 48

約数和(自身を含む): 56788032

約数和(自身を除く): 35527182

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 195, 325, 390, 650, 975, 1950, 10903, 21806, 32709, 54515, 65418, 109030, 141739, 163545, 272575, 283478, 327090, 425217, 545150, 708695, 817725, 850434, 1417390, 1635450, 2126085, 3543475, 4252170, 7086950, 10630425, 21260850]

約数ペア:

[(1, 21260850), (2, 10630425), (3, 7086950), (5, 4252170), (6, 3543475), (10, 2126085), (13, 1635450), (15, 1417390), (25, 850434), (26, 817725), (30, 708695), (39, 545150), (50, 425217), (65, 327090), (75, 283478), (78, 272575), (130, 163545), (150, 141739), (195, 109030), (325, 65418), (390, 54515), (650, 32709), (975, 21806), (1950, 10903)]