21124872

素因数分解:

$2^3\times 3^2\times {\mathrm{181}}^1\times {\mathrm{1621}}^1$

素因数の和:1814

約数の個数: 48

約数和(自身を含む): 57564780

約数和(自身を除く): 36439908

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 181, 362, 543, 724, 1086, 1448, 1621, 1629, 2172, 3242, 3258, 4344, 4863, 6484, 6516, 9726, 12968, 13032, 14589, 19452, 29178, 38904, 58356, 116712, 293401, 586802, 880203, 1173604, 1760406, 2347208, 2640609, 3520812, 5281218, 7041624, 10562436, 21124872]

約数ペア:

[(1, 21124872), (2, 10562436), (3, 7041624), (4, 5281218), (6, 3520812), (8, 2640609), (9, 2347208), (12, 1760406), (18, 1173604), (24, 880203), (36, 586802), (72, 293401), (181, 116712), (362, 58356), (543, 38904), (724, 29178), (1086, 19452), (1448, 14589), (1621, 13032), (1629, 12968), (2172, 9726), (3242, 6516), (3258, 6484), (4344, 4863)]