21223436

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{5591}}^1$

素因数の和:5681

約数の個数: 24

約数和(自身を含む): 40553184

約数和(自身を除く): 19329748

約数列:

[1, 2, 4, 13, 26, 52, 73, 146, 292, 949, 1898, 3796, 5591, 11182, 22364, 72683, 145366, 290732, 408143, 816286, 1632572, 5305859, 10611718, 21223436]

約数ペア:

[(1, 21223436), (2, 10611718), (4, 5305859), (13, 1632572), (26, 816286), (52, 408143), (73, 290732), (146, 145366), (292, 72683), (949, 22364), (1898, 11182), (3796, 5591)]