21949300

素因数分解:

$2^2\times 5^2\times {\mathrm{103}}^1\times {\mathrm{2131}}^1$

素因数の和:2248

約数の個数: 36

約数和(自身を含む): 48114976

約数和(自身を除く): 26165676

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 103, 206, 412, 515, 1030, 2060, 2131, 2575, 4262, 5150, 8524, 10300, 10655, 21310, 42620, 53275, 106550, 213100, 219493, 438986, 877972, 1097465, 2194930, 4389860, 5487325, 10974650, 21949300]

約数ペア:

[(1, 21949300), (2, 10974650), (4, 5487325), (5, 4389860), (10, 2194930), (20, 1097465), (25, 877972), (50, 438986), (100, 219493), (103, 213100), (206, 106550), (412, 53275), (515, 42620), (1030, 21310), (2060, 10655), (2131, 10300), (2575, 8524), (4262, 5150)]