21357042

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{72643}}^1$

素因数の和:72662

約数の個数: 24

約数和(自身を含む): 49688496

約数和(自身を除く): 28331454

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 72643, 145286, 217929, 435858, 508501, 1017002, 1525503, 3051006, 3559507, 7119014, 10678521, 21357042]

約数ペア:

[(1, 21357042), (2, 10678521), (3, 7119014), (6, 3559507), (7, 3051006), (14, 1525503), (21, 1017002), (42, 508501), (49, 435858), (98, 217929), (147, 145286), (294, 72643)]