212756831

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{167}}^1\times {\mathrm{193}}^1$

素因数の和:431

約数の個数: 32

約数和(自身を含む): 262821888

約数和(自身を除く): 50065057

約数列:

[1, 7, 23, 41, 161, 167, 193, 287, 943, 1169, 1351, 3841, 4439, 6601, 6847, 7913, 26887, 31073, 32231, 47929, 55391, 157481, 181999, 225617, 741313, 1102367, 1273993, 1321471, 5189191, 9250297, 30393833, 212756831]

約数ペア:

[(1, 212756831), (7, 30393833), (23, 9250297), (41, 5189191), (161, 1321471), (167, 1273993), (193, 1102367), (287, 741313), (943, 225617), (1169, 181999), (1351, 157481), (3841, 55391), (4439, 47929), (6601, 32231), (6847, 31073), (7913, 26887)]