20641908

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{7927}}^1$

素因数の和:7972

約数の個数: 48

約数和(自身を含む): 56827904

約数和(自身を除く): 36185996

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 31, 42, 62, 84, 93, 124, 186, 217, 372, 434, 651, 868, 1302, 2604, 7927, 15854, 23781, 31708, 47562, 55489, 95124, 110978, 166467, 221956, 245737, 332934, 491474, 665868, 737211, 982948, 1474422, 1720159, 2948844, 3440318, 5160477, 6880636, 10320954, 20641908]

約数ペア:

[(1, 20641908), (2, 10320954), (3, 6880636), (4, 5160477), (6, 3440318), (7, 2948844), (12, 1720159), (14, 1474422), (21, 982948), (28, 737211), (31, 665868), (42, 491474), (62, 332934), (84, 245737), (93, 221956), (124, 166467), (186, 110978), (217, 95124), (372, 55489), (434, 47562), (651, 31708), (868, 23781), (1302, 15854), (2604, 7927)]