20993720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47713}}^1$

素因数の和:47735

約数の個数: 32

約数和(自身を含む): 51531120

約数和(自身を除く): 30537400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 47713, 95426, 190852, 238565, 381704, 477130, 524843, 954260, 1049686, 1908520, 2099372, 2624215, 4198744, 5248430, 10496860, 20993720]

約数ペア:

[(1, 20993720), (2, 10496860), (4, 5248430), (5, 4198744), (8, 2624215), (10, 2099372), (11, 1908520), (20, 1049686), (22, 954260), (40, 524843), (44, 477130), (55, 381704), (88, 238565), (110, 190852), (220, 95426), (440, 47713)]