19479551

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1$

素因数の和:311

約数の個数: 32

約数和(自身を含む): 25740288

約数和(自身を除く): 6260737

約数列:

[1, 7, 13, 23, 41, 91, 161, 227, 287, 299, 533, 943, 1589, 2093, 2951, 3731, 5221, 6601, 9307, 12259, 20657, 36547, 65149, 67873, 85813, 120991, 214061, 475111, 846937, 1498427, 2782793, 19479551]

約数ペア:

[(1, 19479551), (7, 2782793), (13, 1498427), (23, 846937), (41, 475111), (91, 214061), (161, 120991), (227, 85813), (287, 67873), (299, 65149), (533, 36547), (943, 20657), (1589, 12259), (2093, 9307), (2951, 6601), (3731, 5221)]