18785872

素因数分解:

$2^4\times 7^1\times {\mathrm{41}}^1\times {\mathrm{4091}}^1$

素因数の和:4147

約数の個数: 40

約数和(自身を含む): 42622272

約数和(自身を除く): 23836400

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 41, 56, 82, 112, 164, 287, 328, 574, 656, 1148, 2296, 4091, 4592, 8182, 16364, 28637, 32728, 57274, 65456, 114548, 167731, 229096, 335462, 458192, 670924, 1174117, 1341848, 2348234, 2683696, 4696468, 9392936, 18785872]

約数ペア:

[(1, 18785872), (2, 9392936), (4, 4696468), (7, 2683696), (8, 2348234), (14, 1341848), (16, 1174117), (28, 670924), (41, 458192), (56, 335462), (82, 229096), (112, 167731), (164, 114548), (287, 65456), (328, 57274), (574, 32728), (656, 28637), (1148, 16364), (2296, 8182), (4091, 4592)]