217636797

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{145967}}^1$

素因数の和:146048

約数の個数: 16

約数和(自身を含む): 336310272

約数和(自身を除く): 118673475

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 145967, 437901, 1021769, 3065307, 10363657, 31090971, 72545599, 217636797]

約数ペア:

[(1, 217636797), (3, 72545599), (7, 31090971), (21, 10363657), (71, 3065307), (213, 1021769), (497, 437901), (1491, 145967)]