31713717

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1303}}^1$

素因数の和:1393

約数の個数: 32

約数和(自身を含む): 51742720

約数和(自身を除く): 20029003

約数列:

[1, 3, 7, 19, 21, 57, 61, 133, 183, 399, 427, 1159, 1281, 1303, 3477, 3909, 8113, 9121, 24339, 24757, 27363, 74271, 79483, 173299, 238449, 519897, 556381, 1510177, 1669143, 4530531, 10571239, 31713717]

約数ペア:

[(1, 31713717), (3, 10571239), (7, 4530531), (19, 1669143), (21, 1510177), (57, 556381), (61, 519897), (133, 238449), (183, 173299), (399, 79483), (427, 74271), (1159, 27363), (1281, 24757), (1303, 24339), (3477, 9121), (3909, 8113)]