19892746

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:270

約数の個数: 32

約数和(自身を含む): 32503680

約数和(自身を除く): 12610934

約数列:

[1, 2, 23, 43, 46, 86, 89, 113, 178, 226, 989, 1978, 2047, 2599, 3827, 4094, 4859, 5198, 7654, 9718, 10057, 20114, 88021, 111757, 176042, 223514, 231311, 432451, 462622, 864902, 9946373, 19892746]

約数ペア:

[(1, 19892746), (2, 9946373), (23, 864902), (43, 462622), (46, 432451), (86, 231311), (89, 223514), (113, 176042), (178, 111757), (226, 88021), (989, 20114), (1978, 10057), (2047, 9718), (2599, 7654), (3827, 5198), (4094, 4859)]