188307

素因数分解:

$3^2\times 7^3\times {\mathrm{61}}^1$

素因数の和:88

約数の個数: 24

約数和(自身を含む): 322400

約数和(自身を除く): 134093

約数列:

[1, 3, 7, 9, 21, 49, 61, 63, 147, 183, 343, 427, 441, 549, 1029, 1281, 2989, 3087, 3843, 8967, 20923, 26901, 62769, 188307]

約数ペア:

[(1, 188307), (3, 62769), (7, 26901), (9, 20923), (21, 8967), (49, 3843), (61, 3087), (63, 2989), (147, 1281), (183, 1029), (343, 549), (427, 441)]