19511973

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{2111}}^1$

素因数の和:2209

約数の個数: 24

約数和(自身を含む): 30750720

約数和(自身を除く): 11238747

約数列:

[1, 3, 9, 13, 39, 79, 117, 237, 711, 1027, 2111, 3081, 6333, 9243, 18999, 27443, 82329, 166769, 246987, 500307, 1500921, 2167997, 6503991, 19511973]

約数ペア:

[(1, 19511973), (3, 6503991), (9, 2167997), (13, 1500921), (39, 500307), (79, 246987), (117, 166769), (237, 82329), (711, 27443), (1027, 18999), (2111, 9243), (3081, 6333)]