156994131

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{4421}}^1$

素因数の和:4539

約数の個数: 32

約数和(自身を含む): 254707200

約数和(自身を除く): 97713069

約数列:

[1, 3, 7, 19, 21, 57, 89, 133, 267, 399, 623, 1691, 1869, 4421, 5073, 11837, 13263, 30947, 35511, 83999, 92841, 251997, 393469, 587993, 1180407, 1763979, 2754283, 7475911, 8262849, 22427733, 52331377, 156994131]

約数ペア:

[(1, 156994131), (3, 52331377), (7, 22427733), (19, 8262849), (21, 7475911), (57, 2754283), (89, 1763979), (133, 1180407), (267, 587993), (399, 393469), (623, 251997), (1691, 92841), (1869, 83999), (4421, 35511), (5073, 30947), (11837, 13263)]