21508164

素因数分解:

$2^2\times 3^2\times {\mathrm{269}}^1\times {\mathrm{2221}}^1$

素因数の和:2500

約数の個数: 36

約数和(自身を含む): 54594540

約数和(自身を除く): 33086376

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 269, 538, 807, 1076, 1614, 2221, 2421, 3228, 4442, 4842, 6663, 8884, 9684, 13326, 19989, 26652, 39978, 79956, 597449, 1194898, 1792347, 2389796, 3584694, 5377041, 7169388, 10754082, 21508164]

約数ペア:

[(1, 21508164), (2, 10754082), (3, 7169388), (4, 5377041), (6, 3584694), (9, 2389796), (12, 1792347), (18, 1194898), (36, 597449), (269, 79956), (538, 39978), (807, 26652), (1076, 19989), (1614, 13326), (2221, 9684), (2421, 8884), (3228, 6663), (4442, 4842)]