19777647

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1$

素因数の和:327

約数の個数: 32

約数和(自身を含む): 29417472

約数和(自身を除く): 9639825

約数列:

[1, 3, 17, 37, 47, 51, 111, 141, 223, 629, 669, 799, 1739, 1887, 2397, 3791, 5217, 8251, 10481, 11373, 24753, 29563, 31443, 88689, 140267, 178177, 387797, 420801, 534531, 1163391, 6592549, 19777647]

約数ペア:

[(1, 19777647), (3, 6592549), (17, 1163391), (37, 534531), (47, 420801), (51, 387797), (111, 178177), (141, 140267), (223, 88689), (629, 31443), (669, 29563), (799, 24753), (1739, 11373), (1887, 10481), (2397, 8251), (3791, 5217)]