20643882

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{997}}^1$

素因数の和:1055

約数の個数: 64

約数和(自身を含む): 51736320

約数和(自身を除く): 31092438

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 29, 34, 42, 51, 58, 87, 102, 119, 174, 203, 238, 357, 406, 493, 609, 714, 986, 997, 1218, 1479, 1994, 2958, 2991, 3451, 5982, 6902, 6979, 10353, 13958, 16949, 20706, 20937, 28913, 33898, 41874, 50847, 57826, 86739, 101694, 118643, 173478, 202391, 237286, 355929, 404782, 491521, 607173, 711858, 983042, 1214346, 1474563, 2949126, 3440647, 6881294, 10321941, 20643882]

約数ペア:

[(1, 20643882), (2, 10321941), (3, 6881294), (6, 3440647), (7, 2949126), (14, 1474563), (17, 1214346), (21, 983042), (29, 711858), (34, 607173), (42, 491521), (51, 404782), (58, 355929), (87, 237286), (102, 202391), (119, 173478), (174, 118643), (203, 101694), (238, 86739), (357, 57826), (406, 50847), (493, 41874), (609, 33898), (714, 28913), (986, 20937), (997, 20706), (1218, 16949), (1479, 13958), (1994, 10353), (2958, 6979), (2991, 6902), (3451, 5982)]