19982837

素因数分解:

$7^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1$

素因数の和:210

約数の個数: 32

約数和(自身を含む): 25920000

約数和(自身を除く): 5937163

約数列:

[1, 7, 17, 23, 49, 119, 149, 161, 343, 391, 833, 1043, 1127, 2533, 2737, 3427, 5831, 7301, 7889, 17731, 19159, 23989, 51107, 58259, 124117, 134113, 167923, 407813, 868819, 1175461, 2854691, 19982837]

約数ペア:

[(1, 19982837), (7, 2854691), (17, 1175461), (23, 868819), (49, 407813), (119, 167923), (149, 134113), (161, 124117), (343, 58259), (391, 51107), (833, 23989), (1043, 19159), (1127, 17731), (2533, 7889), (2737, 7301), (3427, 5831)]