21740428

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{3527}}^1$

素因数の和:3621

約数の個数: 24

約数和(自身を含む): 40303872

約数和(自身を除く): 18563444

約数列:

[1, 2, 4, 23, 46, 67, 92, 134, 268, 1541, 3082, 3527, 6164, 7054, 14108, 81121, 162242, 236309, 324484, 472618, 945236, 5435107, 10870214, 21740428]

約数ペア:

[(1, 21740428), (2, 10870214), (4, 5435107), (23, 945236), (46, 472618), (67, 324484), (92, 236309), (134, 162242), (268, 81121), (1541, 14108), (3082, 7054), (3527, 6164)]