20319663

素因数分解:

$3^1\times 7^5\times {\mathrm{13}}^1\times {\mathrm{31}}^1$

素因数の和:82

約数の個数: 48

約数和(自身を含む): 35137536

約数和(自身を除く): 14817873

約数列:

[1, 3, 7, 13, 21, 31, 39, 49, 91, 93, 147, 217, 273, 343, 403, 637, 651, 1029, 1209, 1519, 1911, 2401, 2821, 4459, 4557, 7203, 8463, 10633, 13377, 16807, 19747, 31213, 31899, 50421, 59241, 74431, 93639, 138229, 218491, 223293, 414687, 521017, 655473, 967603, 1563051, 2902809, 6773221, 20319663]

約数ペア:

[(1, 20319663), (3, 6773221), (7, 2902809), (13, 1563051), (21, 967603), (31, 655473), (39, 521017), (49, 414687), (91, 223293), (93, 218491), (147, 138229), (217, 93639), (273, 74431), (343, 59241), (403, 50421), (637, 31899), (651, 31213), (1029, 19747), (1209, 16807), (1519, 13377), (1911, 10633), (2401, 8463), (2821, 7203), (4459, 4557)]