81601079

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 101274624

約数和(自身を除く): 19673545

約数列:

[1, 7, 23, 53, 73, 131, 161, 371, 511, 917, 1219, 1679, 3013, 3869, 6943, 8533, 9563, 11753, 21091, 27083, 48601, 66941, 88987, 159689, 219949, 506839, 622909, 1117823, 1539643, 3547873, 11657297, 81601079]

約数ペア:

[(1, 81601079), (7, 11657297), (23, 3547873), (53, 1539643), (73, 1117823), (131, 622909), (161, 506839), (371, 219949), (511, 159689), (917, 88987), (1219, 66941), (1679, 48601), (3013, 27083), (3869, 21091), (6943, 11753), (8533, 9563)]