20385976

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{929}}^1$

素因数の和:1159

約数の個数: 32

約数和(自身を含む): 41403600

約数和(自身を除く): 21017624

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 211, 422, 844, 929, 1688, 1858, 2743, 3716, 5486, 7432, 10972, 12077, 21944, 24154, 48308, 96616, 196019, 392038, 784076, 1568152, 2548247, 5096494, 10192988, 20385976]

約数ペア:

[(1, 20385976), (2, 10192988), (4, 5096494), (8, 2548247), (13, 1568152), (26, 784076), (52, 392038), (104, 196019), (211, 96616), (422, 48308), (844, 24154), (929, 21944), (1688, 12077), (1858, 10972), (2743, 7432), (3716, 5486)]