21178144

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{50909}}^1$

素因数の和:50932

約数の個数: 24

約数和(自身を含む): 44902620

約数和(自身を除く): 23724476

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 50909, 101818, 203636, 407272, 661817, 814544, 1323634, 1629088, 2647268, 5294536, 10589072, 21178144]

約数ペア:

[(1, 21178144), (2, 10589072), (4, 5294536), (8, 2647268), (13, 1629088), (16, 1323634), (26, 814544), (32, 661817), (52, 407272), (104, 203636), (208, 101818), (416, 50909)]