21769132

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{439}}^1$

素因数の和:491

約数の個数: 72

約数和(自身を含む): 50561280

約数和(自身を除く): 28792148

約数列:

[1, 2, 4, 7, 11, 14, 22, 23, 28, 44, 46, 49, 77, 92, 98, 154, 161, 196, 253, 308, 322, 439, 506, 539, 644, 878, 1012, 1078, 1127, 1756, 1771, 2156, 2254, 3073, 3542, 4508, 4829, 6146, 7084, 9658, 10097, 12292, 12397, 19316, 20194, 21511, 24794, 33803, 40388, 43022, 49588, 67606, 70679, 86044, 111067, 135212, 141358, 222134, 236621, 282716, 444268, 473242, 494753, 777469, 946484, 989506, 1554938, 1979012, 3109876, 5442283, 10884566, 21769132]

約数ペア:

[(1, 21769132), (2, 10884566), (4, 5442283), (7, 3109876), (11, 1979012), (14, 1554938), (22, 989506), (23, 946484), (28, 777469), (44, 494753), (46, 473242), (49, 444268), (77, 282716), (92, 236621), (98, 222134), (154, 141358), (161, 135212), (196, 111067), (253, 86044), (308, 70679), (322, 67606), (439, 49588), (506, 43022), (539, 40388), (644, 33803), (878, 24794), (1012, 21511), (1078, 20194), (1127, 19316), (1756, 12397), (1771, 12292), (2156, 10097), (2254, 9658), (3073, 7084), (3542, 6146), (4508, 4829)]