21421167237

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{449}}^1\times {\mathrm{311821}}^1$

素因数の和:312293

約数の個数: 24

約数和(自身を含む): 32834856600

約数和(自身を除く): 11413689363

約数列:

[1, 3, 9, 17, 51, 153, 449, 1347, 4041, 7633, 22899, 68697, 311821, 935463, 2806389, 5300957, 15902871, 47708613, 140007629, 420022887, 1260068661, 2380129693, 7140389079, 21421167237]

約数ペア:

[(1, 21421167237), (3, 7140389079), (9, 2380129693), (17, 1260068661), (51, 420022887), (153, 140007629), (449, 47708613), (1347, 15902871), (4041, 5300957), (7633, 2806389), (22899, 935463), (68697, 311821)]