19278853

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{421}}^1$

素因数の和:636

約数の個数: 16

約数和(自身を含む): 22119552

約数和(自身を除く): 2840699

約数列:

[1, 11, 23, 181, 253, 421, 1991, 4163, 4631, 9683, 45793, 76201, 106513, 838211, 1752623, 19278853]

約数ペア:

[(1, 19278853), (11, 1752623), (23, 838211), (181, 106513), (253, 76201), (421, 45793), (1991, 9683), (4163, 4631)]