18435921

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{13103}}^1$

素因数の和:13180

約数の個数: 16

約数和(自身を含む): 28514304

約数和(自身を除く): 10078383

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 13103, 39309, 91721, 275163, 877901, 2633703, 6145307, 18435921]

約数ペア:

[(1, 18435921), (3, 6145307), (7, 2633703), (21, 877901), (67, 275163), (201, 91721), (469, 39309), (1407, 13103)]