81748191

素因数分解:

$3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1\times {\mathrm{229}}^1$

素因数の和:519

約数の個数: 32

約数和(自身を含む): 127180800

約数和(自身を除く): 45432609

約数列:

[1, 3, 7, 21, 89, 191, 229, 267, 573, 623, 687, 1337, 1603, 1869, 4011, 4809, 16999, 20381, 43739, 50997, 61143, 118993, 131217, 142667, 306173, 356979, 428001, 918519, 3892771, 11678313, 27249397, 81748191]

約数ペア:

[(1, 81748191), (3, 27249397), (7, 11678313), (21, 3892771), (89, 918519), (191, 428001), (229, 356979), (267, 306173), (573, 142667), (623, 131217), (687, 118993), (1337, 61143), (1603, 50997), (1869, 43739), (4011, 20381), (4809, 16999)]