18521538

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{440989}}^1$

素因数の和:441001

約数の個数: 16

約数和(自身を含む): 42335040

約数和(自身を除く): 23813502

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 440989, 881978, 1322967, 2645934, 3086923, 6173846, 9260769, 18521538]

約数ペア:

[(1, 18521538), (2, 9260769), (3, 6173846), (6, 3086923), (7, 2645934), (14, 1322967), (21, 881978), (42, 440989)]