19938597

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{383}}^1$

素因数の和:497

約数の個数: 32

約数和(自身を含む): 31752192

約数和(自身を除く): 11813595

約数列:

[1, 3, 7, 21, 37, 67, 111, 201, 259, 383, 469, 777, 1149, 1407, 2479, 2681, 7437, 8043, 14171, 17353, 25661, 42513, 52059, 76983, 99197, 179627, 297591, 538881, 949457, 2848371, 6646199, 19938597]

約数ペア:

[(1, 19938597), (3, 6646199), (7, 2848371), (21, 949457), (37, 538881), (67, 297591), (111, 179627), (201, 99197), (259, 76983), (383, 52059), (469, 42513), (777, 25661), (1149, 17353), (1407, 14171), (2479, 8043), (2681, 7437)]