18976209

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{13487}}^1$

素因数の和:13564

約数の個数: 16

約数和(自身を含む): 29349888

約数和(自身を除く): 10373679

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 13487, 40461, 94409, 283227, 903629, 2710887, 6325403, 18976209]

約数ペア:

[(1, 18976209), (3, 6325403), (7, 2710887), (21, 903629), (67, 283227), (201, 94409), (469, 40461), (1407, 13487)]