21448460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{8863}}^1$

素因数の和:8894

約数の個数: 36

約数和(自身を含む): 49514304

約数和(自身を除く): 28065844

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 8863, 17726, 35452, 44315, 88630, 97493, 177260, 194986, 389972, 487465, 974930, 1072423, 1949860, 2144846, 4289692, 5362115, 10724230, 21448460]

約数ペア:

[(1, 21448460), (2, 10724230), (4, 5362115), (5, 4289692), (10, 2144846), (11, 1949860), (20, 1072423), (22, 974930), (44, 487465), (55, 389972), (110, 194986), (121, 177260), (220, 97493), (242, 88630), (484, 44315), (605, 35452), (1210, 17726), (2420, 8863)]