21721936

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{881}}^1$

素因数の和:979

約数の個数: 40

約数和(自身を含む): 44622144

約数和(自身を除く): 22900208

約数列:

[1, 2, 4, 8, 16, 23, 46, 67, 92, 134, 184, 268, 368, 536, 881, 1072, 1541, 1762, 3082, 3524, 6164, 7048, 12328, 14096, 20263, 24656, 40526, 59027, 81052, 118054, 162104, 236108, 324208, 472216, 944432, 1357621, 2715242, 5430484, 10860968, 21721936]

約数ペア:

[(1, 21721936), (2, 10860968), (4, 5430484), (8, 2715242), (16, 1357621), (23, 944432), (46, 472216), (67, 324208), (92, 236108), (134, 162104), (184, 118054), (268, 81052), (368, 59027), (536, 40526), (881, 24656), (1072, 20263), (1541, 14096), (1762, 12328), (3082, 7048), (3524, 6164)]