21771808

素因数分解:

$2^5\times {\mathrm{29}}^2\times {\mathrm{809}}^1$

素因数の和:877

約数の個数: 36

約数和(自身を含む): 44447130

約数和(自身を除く): 22675322

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 116, 232, 464, 809, 841, 928, 1618, 1682, 3236, 3364, 6472, 6728, 12944, 13456, 23461, 25888, 26912, 46922, 93844, 187688, 375376, 680369, 750752, 1360738, 2721476, 5442952, 10885904, 21771808]

約数ペア:

[(1, 21771808), (2, 10885904), (4, 5442952), (8, 2721476), (16, 1360738), (29, 750752), (32, 680369), (58, 375376), (116, 187688), (232, 93844), (464, 46922), (809, 26912), (841, 25888), (928, 23461), (1618, 13456), (1682, 12944), (3236, 6728), (3364, 6472)]