19690147211

素因数分解:

$7^4\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{2393}}^1$

素因数の和:2593

約数の個数: 40

約数和(自身を含む): 24140138400

約数和(自身を除く): 4449991189

約数列:

[1, 7, 23, 49, 149, 161, 343, 1043, 1127, 2393, 2401, 3427, 7301, 7889, 16751, 23989, 51107, 55039, 55223, 117257, 167923, 356557, 357749, 385273, 820799, 1175461, 2495899, 2696911, 5745593, 8200811, 8228227, 17471293, 18878377, 57405677, 122299051, 132148639, 401839739, 856093357, 2812878173, 19690147211]

約数ペア:

[(1, 19690147211), (7, 2812878173), (23, 856093357), (49, 401839739), (149, 132148639), (161, 122299051), (343, 57405677), (1043, 18878377), (1127, 17471293), (2393, 8228227), (2401, 8200811), (3427, 5745593), (7301, 2696911), (7889, 2495899), (16751, 1175461), (23989, 820799), (51107, 385273), (55039, 357749), (55223, 356557), (117257, 167923)]