19998111471

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{587}}^1\times {\mathrm{2503}}^1$

素因数の和:3455

約数の個数: 32

約数和(自身を含む): 28858099200

約数和(自身を除く): 8859987729

約数列:

[1, 3, 13, 39, 349, 587, 1047, 1761, 2503, 4537, 7509, 7631, 13611, 22893, 32539, 97617, 204863, 614589, 873547, 1469261, 2620641, 2663219, 4407783, 7989657, 11356111, 19100393, 34068333, 57301179, 512772089, 1538316267, 6666037157, 19998111471]

約数ペア:

[(1, 19998111471), (3, 6666037157), (13, 1538316267), (39, 512772089), (349, 57301179), (587, 34068333), (1047, 19100393), (1761, 11356111), (2503, 7989657), (4537, 4407783), (7509, 2663219), (7631, 2620641), (13611, 1469261), (22893, 873547), (32539, 614589), (97617, 204863)]