21779720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{32029}}^1$

素因数の和:32057

約数の個数: 32

約数和(自身を含む): 51888600

約数和(自身を除く): 30108880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 32029, 64058, 128116, 160145, 256232, 320290, 544493, 640580, 1088986, 1281160, 2177972, 2722465, 4355944, 5444930, 10889860, 21779720]

約数ペア:

[(1, 21779720), (2, 10889860), (4, 5444930), (5, 4355944), (8, 2722465), (10, 2177972), (17, 1281160), (20, 1088986), (34, 640580), (40, 544493), (68, 320290), (85, 256232), (136, 160145), (170, 128116), (340, 64058), (680, 32029)]