17991376

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1291}}^1$

素因数の和:1379

約数の個数: 40

約数和(自身を含む): 38129504

約数和(自身を除く): 20138128

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 67, 104, 134, 208, 268, 536, 871, 1072, 1291, 1742, 2582, 3484, 5164, 6968, 10328, 13936, 16783, 20656, 33566, 67132, 86497, 134264, 172994, 268528, 345988, 691976, 1124461, 1383952, 2248922, 4497844, 8995688, 17991376]

約数ペア:

[(1, 17991376), (2, 8995688), (4, 4497844), (8, 2248922), (13, 1383952), (16, 1124461), (26, 691976), (52, 345988), (67, 268528), (104, 172994), (134, 134264), (208, 86497), (268, 67132), (536, 33566), (871, 20656), (1072, 16783), (1291, 13936), (1742, 10328), (2582, 6968), (3484, 5164)]