21190936

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{5507}}^1$

素因数の和:5563

約数の個数: 32

約数和(自身を含む): 43953840

約数和(自身を除く): 22762904

約数列:

[1, 2, 4, 8, 13, 26, 37, 52, 74, 104, 148, 296, 481, 962, 1924, 3848, 5507, 11014, 22028, 44056, 71591, 143182, 203759, 286364, 407518, 572728, 815036, 1630072, 2648867, 5297734, 10595468, 21190936]

約数ペア:

[(1, 21190936), (2, 10595468), (4, 5297734), (8, 2648867), (13, 1630072), (26, 815036), (37, 572728), (52, 407518), (74, 286364), (104, 203759), (148, 143182), (296, 71591), (481, 44056), (962, 22028), (1924, 11014), (3848, 5507)]