20531324

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{599}}^1$

素因数の和:674

約数の個数: 48

約数和(自身を含む): 42336000

約数和(自身を除く): 21804676

約数列:

[1, 2, 4, 11, 19, 22, 38, 41, 44, 76, 82, 164, 209, 418, 451, 599, 779, 836, 902, 1198, 1558, 1804, 2396, 3116, 6589, 8569, 11381, 13178, 17138, 22762, 24559, 26356, 34276, 45524, 49118, 98236, 125191, 250382, 270149, 466621, 500764, 540298, 933242, 1080596, 1866484, 5132831, 10265662, 20531324]

約数ペア:

[(1, 20531324), (2, 10265662), (4, 5132831), (11, 1866484), (19, 1080596), (22, 933242), (38, 540298), (41, 500764), (44, 466621), (76, 270149), (82, 250382), (164, 125191), (209, 98236), (418, 49118), (451, 45524), (599, 34276), (779, 26356), (836, 24559), (902, 22762), (1198, 17138), (1558, 13178), (1804, 11381), (2396, 8569), (3116, 6589)]