21420258

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{187897}}^1$

素因数の和:187921

約数の個数: 16

約数和(自身を含む): 45095520

約数和(自身を除く): 23675262

約数列:

[1, 2, 3, 6, 19, 38, 57, 114, 187897, 375794, 563691, 1127382, 3570043, 7140086, 10710129, 21420258]

約数ペア:

[(1, 21420258), (2, 10710129), (3, 7140086), (6, 3570043), (19, 1127382), (38, 563691), (57, 375794), (114, 187897)]