21006237

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{2029}}^1$

素因数の和:2085

約数の個数: 32

約数和(自身を含む): 35078400

約数和(自身を除く): 14072163

約数列:

[1, 3, 7, 17, 21, 29, 51, 87, 119, 203, 357, 493, 609, 1479, 2029, 3451, 6087, 10353, 14203, 34493, 42609, 58841, 103479, 176523, 241451, 411887, 724353, 1000297, 1235661, 3000891, 7002079, 21006237]

約数ペア:

[(1, 21006237), (3, 7002079), (7, 3000891), (17, 1235661), (21, 1000297), (29, 724353), (51, 411887), (87, 241451), (119, 176523), (203, 103479), (357, 58841), (493, 42609), (609, 34493), (1479, 14203), (2029, 10353), (3451, 6087)]