21907912

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{11087}}^1$

素因数の和:11125

約数の個数: 32

約数和(自身を含む): 46569600

約数和(自身を除く): 24661688

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 11087, 22174, 44348, 88696, 144131, 210653, 288262, 421306, 576524, 842612, 1153048, 1685224, 2738489, 5476978, 10953956, 21907912]

約数ペア:

[(1, 21907912), (2, 10953956), (4, 5476978), (8, 2738489), (13, 1685224), (19, 1153048), (26, 842612), (38, 576524), (52, 421306), (76, 288262), (104, 210653), (152, 144131), (247, 88696), (494, 44348), (988, 22174), (1976, 11087)]