18878958

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{269}}^1\times {\mathrm{557}}^1$

素因数の和:841

約数の個数: 48

約数和(自身を含む): 47005920

約数和(自身を除く): 28126962

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 269, 538, 557, 807, 1114, 1614, 1671, 1883, 2421, 3342, 3766, 3899, 4842, 5013, 5649, 7798, 10026, 11298, 11697, 16947, 23394, 33894, 35091, 70182, 149833, 299666, 449499, 898998, 1048831, 1348497, 2097662, 2696994, 3146493, 6292986, 9439479, 18878958]

約数ペア:

[(1, 18878958), (2, 9439479), (3, 6292986), (6, 3146493), (7, 2696994), (9, 2097662), (14, 1348497), (18, 1048831), (21, 898998), (42, 449499), (63, 299666), (126, 149833), (269, 70182), (538, 35091), (557, 33894), (807, 23394), (1114, 16947), (1614, 11697), (1671, 11298), (1883, 10026), (2421, 7798), (3342, 5649), (3766, 5013), (3899, 4842)]