19982216

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{829}}^1$

素因数の和:989

約数の個数: 32

約数和(自身を含む): 39441600

約数和(自身を除く): 19459384

約数列:

[1, 2, 4, 8, 23, 46, 92, 131, 184, 262, 524, 829, 1048, 1658, 3013, 3316, 6026, 6632, 12052, 19067, 24104, 38134, 76268, 108599, 152536, 217198, 434396, 868792, 2497777, 4995554, 9991108, 19982216]

約数ペア:

[(1, 19982216), (2, 9991108), (4, 4995554), (8, 2497777), (23, 868792), (46, 434396), (92, 217198), (131, 152536), (184, 108599), (262, 76268), (524, 38134), (829, 24104), (1048, 19067), (1658, 12052), (3013, 6632), (3316, 6026)]