19979208

素因数分解:

$2^3\times 3^2\times {\mathrm{61}}^1\times {\mathrm{4549}}^1$

素因数の和:4622

約数の個数: 48

約数和(自身を含む): 55009500

約数和(自身を除く): 35030292

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 61, 72, 122, 183, 244, 366, 488, 549, 732, 1098, 1464, 2196, 4392, 4549, 9098, 13647, 18196, 27294, 36392, 40941, 54588, 81882, 109176, 163764, 277489, 327528, 554978, 832467, 1109956, 1664934, 2219912, 2497401, 3329868, 4994802, 6659736, 9989604, 19979208]

約数ペア:

[(1, 19979208), (2, 9989604), (3, 6659736), (4, 4994802), (6, 3329868), (8, 2497401), (9, 2219912), (12, 1664934), (18, 1109956), (24, 832467), (36, 554978), (61, 327528), (72, 277489), (122, 163764), (183, 109176), (244, 81882), (366, 54588), (488, 40941), (549, 36392), (732, 27294), (1098, 18196), (1464, 13647), (2196, 9098), (4392, 4549)]