21545944

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{5419}}^1$

素因数の和:5503

約数の個数: 32

約数和(自身を含む): 46828800

約数和(自身を除く): 25282856

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 142, 284, 497, 568, 994, 1988, 3976, 5419, 10838, 21676, 37933, 43352, 75866, 151732, 303464, 384749, 769498, 1538996, 2693243, 3077992, 5386486, 10772972, 21545944]

約数ペア:

[(1, 21545944), (2, 10772972), (4, 5386486), (7, 3077992), (8, 2693243), (14, 1538996), (28, 769498), (56, 384749), (71, 303464), (142, 151732), (284, 75866), (497, 43352), (568, 37933), (994, 21676), (1988, 10838), (3976, 5419)]