18971386

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{977}}^1$

素因数の和:1078

約数の個数: 32

約数和(自身を含む): 34738560

約数和(自身を除く): 15767174

約数列:

[1, 2, 7, 14, 19, 38, 73, 133, 146, 266, 511, 977, 1022, 1387, 1954, 2774, 6839, 9709, 13678, 18563, 19418, 37126, 71321, 129941, 142642, 259882, 499247, 998494, 1355099, 2710198, 9485693, 18971386]

約数ペア:

[(1, 18971386), (2, 9485693), (7, 2710198), (14, 1355099), (19, 998494), (38, 499247), (73, 259882), (133, 142642), (146, 129941), (266, 71321), (511, 37126), (977, 19418), (1022, 18563), (1387, 13678), (1954, 9709), (2774, 6839)]