19438367039

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{719}}^1\times {\mathrm{12917}}^1$

素因数の和:13679

約数の個数: 32

約数和(自身を含む): 25000980480

約数和(自身を除く): 5562613441

約数列:

[1, 7, 13, 23, 91, 161, 299, 719, 2093, 5033, 9347, 12917, 16537, 65429, 90419, 115759, 167921, 214981, 297091, 1175447, 1504867, 2079637, 3862183, 9287323, 27035281, 65011261, 120735199, 213608429, 845146393, 1495259003, 2776909577, 19438367039]

約数ペア:

[(1, 19438367039), (7, 2776909577), (13, 1495259003), (23, 845146393), (91, 213608429), (161, 120735199), (299, 65011261), (719, 27035281), (2093, 9287323), (5033, 3862183), (9347, 2079637), (12917, 1504867), (16537, 1175447), (65429, 297091), (90419, 214981), (115759, 167921)]