16989874

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:306

約数の個数: 32

約数和(自身を含む): 28771200

約数和(自身を除く): 11781326

約数列:

[1, 2, 11, 22, 71, 73, 142, 146, 149, 298, 781, 803, 1562, 1606, 1639, 3278, 5183, 10366, 10579, 10877, 21158, 21754, 57013, 114026, 116369, 119647, 232738, 239294, 772267, 1544534, 8494937, 16989874]

約数ペア:

[(1, 16989874), (2, 8494937), (11, 1544534), (22, 772267), (71, 239294), (73, 232738), (142, 119647), (146, 116369), (149, 114026), (298, 57013), (781, 21754), (803, 21158), (1562, 10877), (1606, 10579), (1639, 10366), (3278, 5183)]