19788496

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{13591}}^1$

素因数の和:13619

約数の個数: 40

約数和(自身を含む): 47191424

約数和(自身を除く): 27402928

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 13591, 27182, 54364, 95137, 108728, 176683, 190274, 217456, 353366, 380548, 706732, 761096, 1236781, 1413464, 1522192, 2473562, 2826928, 4947124, 9894248, 19788496]

約数ペア:

[(1, 19788496), (2, 9894248), (4, 4947124), (7, 2826928), (8, 2473562), (13, 1522192), (14, 1413464), (16, 1236781), (26, 761096), (28, 706732), (52, 380548), (56, 353366), (91, 217456), (104, 190274), (112, 176683), (182, 108728), (208, 95137), (364, 54364), (728, 27182), (1456, 13591)]