20591704

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{5179}}^1$

素因数の和:5263

約数の個数: 32

約数和(自身を含む): 44755200

約数和(自身を除く): 24163496

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 142, 284, 497, 568, 994, 1988, 3976, 5179, 10358, 20716, 36253, 41432, 72506, 145012, 290024, 367709, 735418, 1470836, 2573963, 2941672, 5147926, 10295852, 20591704]

約数ペア:

[(1, 20591704), (2, 10295852), (4, 5147926), (7, 2941672), (8, 2573963), (14, 1470836), (28, 735418), (56, 367709), (71, 290024), (142, 145012), (284, 72506), (497, 41432), (568, 36253), (994, 20716), (1988, 10358), (3976, 5179)]