31522197

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{397}}^1$

素因数の和:625

約数の個数: 32

約数和(自身を含む): 50944000

約数和(自身を除く): 19421803

約数列:

[1, 3, 7, 19, 21, 57, 133, 199, 397, 399, 597, 1191, 1393, 2779, 3781, 4179, 7543, 8337, 11343, 22629, 26467, 52801, 79003, 79401, 158403, 237009, 553021, 1501057, 1659063, 4503171, 10507399, 31522197]

約数ペア:

[(1, 31522197), (3, 10507399), (7, 4503171), (19, 1659063), (21, 1501057), (57, 553021), (133, 237009), (199, 158403), (397, 79401), (399, 79003), (597, 52801), (1191, 26467), (1393, 22629), (2779, 11343), (3781, 8337), (4179, 7543)]