21940256

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{4057}}^1$

素因数の和:4093

約数の個数: 36

約数和(自身を含む): 46784682

約数和(自身を除く): 24844426

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 169, 208, 338, 416, 676, 1352, 2704, 4057, 5408, 8114, 16228, 32456, 52741, 64912, 105482, 129824, 210964, 421928, 685633, 843856, 1371266, 1687712, 2742532, 5485064, 10970128, 21940256]

約数ペア:

[(1, 21940256), (2, 10970128), (4, 5485064), (8, 2742532), (13, 1687712), (16, 1371266), (26, 843856), (32, 685633), (52, 421928), (104, 210964), (169, 129824), (208, 105482), (338, 64912), (416, 52741), (676, 32456), (1352, 16228), (2704, 8114), (4057, 5408)]