21219562

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3761}}^1$

素因数の和:3814

約数の個数: 32

約数和(自身を含む): 40449024

約数和(自身を除く): 19229462

約数列:

[1, 2, 7, 13, 14, 26, 31, 62, 91, 182, 217, 403, 434, 806, 2821, 3761, 5642, 7522, 26327, 48893, 52654, 97786, 116591, 233182, 342251, 684502, 816137, 1515683, 1632274, 3031366, 10609781, 21219562]

約数ペア:

[(1, 21219562), (2, 10609781), (7, 3031366), (13, 1632274), (14, 1515683), (26, 816137), (31, 684502), (62, 342251), (91, 233182), (182, 116591), (217, 97786), (403, 52654), (434, 48893), (806, 26327), (2821, 7522), (3761, 5642)]