18629709

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{46691}}^1$

素因数の和:46720

約数の個数: 16

約数和(自身を含む): 29882880

約数和(自身を除く): 11253171

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 46691, 140073, 326837, 887129, 980511, 2661387, 6209903, 18629709]

約数ペア:

[(1, 18629709), (3, 6209903), (7, 2661387), (19, 980511), (21, 887129), (57, 326837), (133, 140073), (399, 46691)]