31939281

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{139}}^1\times {\mathrm{211}}^1$

素因数の和:378

約数の個数: 36

約数和(自身を含む): 51316720

約数和(自身を除く): 19377439

約数列:

[1, 3, 9, 11, 33, 99, 121, 139, 211, 363, 417, 633, 1089, 1251, 1529, 1899, 2321, 4587, 6963, 13761, 16819, 20889, 25531, 29329, 50457, 76593, 87987, 151371, 229779, 263961, 322619, 967857, 2903571, 3548809, 10646427, 31939281]

約数ペア:

[(1, 31939281), (3, 10646427), (9, 3548809), (11, 2903571), (33, 967857), (99, 322619), (121, 263961), (139, 229779), (211, 151371), (363, 87987), (417, 76593), (633, 50457), (1089, 29329), (1251, 25531), (1529, 20889), (1899, 16819), (2321, 13761), (4587, 6963)]