19956755

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1907}}^1$

素因数の和:1955

約数の個数: 32

約数和(自身を含む): 30772224

約数和(自身を除く): 10815469

約数列:

[1, 5, 7, 13, 23, 35, 65, 91, 115, 161, 299, 455, 805, 1495, 1907, 2093, 9535, 10465, 13349, 24791, 43861, 66745, 123955, 173537, 219305, 307027, 570193, 867685, 1535135, 2850965, 3991351, 19956755]

約数ペア:

[(1, 19956755), (5, 3991351), (7, 2850965), (13, 1535135), (23, 867685), (35, 570193), (65, 307027), (91, 219305), (115, 173537), (161, 123955), (299, 66745), (455, 43861), (805, 24791), (1495, 13349), (1907, 10465), (2093, 9535)]