19838455

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{739}}^1$

素因数の和:823

約数の個数: 32

約数和(自身を含む): 29836800

約数和(自身を除く): 9998345

約数列:

[1, 5, 7, 13, 35, 59, 65, 91, 295, 413, 455, 739, 767, 2065, 3695, 3835, 5173, 5369, 9607, 25865, 26845, 43601, 48035, 67249, 218005, 305207, 336245, 566813, 1526035, 2834065, 3967691, 19838455]

約数ペア:

[(1, 19838455), (5, 3967691), (7, 2834065), (13, 1526035), (35, 566813), (59, 336245), (65, 305207), (91, 218005), (295, 67249), (413, 48035), (455, 43601), (739, 26845), (767, 25865), (2065, 9607), (3695, 5369), (3835, 5173)]