16989203

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1$

素因数の和:275

約数の個数: 32

約数和(自身を含む): 22643712

約数和(自身を除く): 5654509

約数列:

[1, 7, 11, 23, 53, 77, 161, 181, 253, 371, 583, 1219, 1267, 1771, 1991, 4081, 4163, 8533, 9593, 13409, 13937, 29141, 45793, 67151, 93863, 105523, 220639, 320551, 738661, 1544473, 2427029, 16989203]

約数ペア:

[(1, 16989203), (7, 2427029), (11, 1544473), (23, 738661), (53, 320551), (77, 220639), (161, 105523), (181, 93863), (253, 67151), (371, 45793), (583, 29141), (1219, 13937), (1267, 13409), (1771, 9593), (1991, 8533), (4081, 4163)]