19161338

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{521}}^1$

素因数の和:638

約数の個数: 32

約数和(自身を含む): 34276608

約数和(自身を除く): 15115270

約数列:

[1, 2, 7, 14, 37, 71, 74, 142, 259, 497, 518, 521, 994, 1042, 2627, 3647, 5254, 7294, 18389, 19277, 36778, 36991, 38554, 73982, 134939, 258937, 269878, 517874, 1368667, 2737334, 9580669, 19161338]

約数ペア:

[(1, 19161338), (2, 9580669), (7, 2737334), (14, 1368667), (37, 517874), (71, 269878), (74, 258937), (142, 134939), (259, 73982), (497, 38554), (518, 36991), (521, 36778), (994, 19277), (1042, 18389), (2627, 7294), (3647, 5254)]