18940948

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{1009}}^1$

素因数の和:1064

約数の個数: 36

約数和(自身を含む): 37711380

約数和(自身を除く): 18770432

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 361, 494, 722, 988, 1009, 1444, 2018, 4036, 4693, 9386, 13117, 18772, 19171, 26234, 38342, 52468, 76684, 249223, 364249, 498446, 728498, 996892, 1456996, 4735237, 9470474, 18940948]

約数ペア:

[(1, 18940948), (2, 9470474), (4, 4735237), (13, 1456996), (19, 996892), (26, 728498), (38, 498446), (52, 364249), (76, 249223), (247, 76684), (361, 52468), (494, 38342), (722, 26234), (988, 19171), (1009, 18772), (1444, 13117), (2018, 9386), (4036, 4693)]