21179504

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{859}}^1$

素因数の和:957

約数の個数: 40

約数和(自身を含む): 43509120

約数和(自身を除く): 22329616

約数列:

[1, 2, 4, 8, 16, 23, 46, 67, 92, 134, 184, 268, 368, 536, 859, 1072, 1541, 1718, 3082, 3436, 6164, 6872, 12328, 13744, 19757, 24656, 39514, 57553, 79028, 115106, 158056, 230212, 316112, 460424, 920848, 1323719, 2647438, 5294876, 10589752, 21179504]

約数ペア:

[(1, 21179504), (2, 10589752), (4, 5294876), (8, 2647438), (16, 1323719), (23, 920848), (46, 460424), (67, 316112), (92, 230212), (134, 158056), (184, 115106), (268, 79028), (368, 57553), (536, 39514), (859, 24656), (1072, 19757), (1541, 13744), (1718, 12328), (3082, 6872), (3436, 6164)]