21165771956

素因数分解:

$2^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{379}}^1\times {\mathrm{25247}}^1$

素因数の和:25716

約数の個数: 48

約数和(自身を含む): 42982195200

約数和(自身を除く): 21816423244

約数列:

[1, 2, 4, 7, 14, 28, 79, 158, 316, 379, 553, 758, 1106, 1516, 2212, 2653, 5306, 10612, 25247, 29941, 50494, 59882, 100988, 119764, 176729, 209587, 353458, 419174, 706916, 838348, 1994513, 3989026, 7978052, 9568613, 13961591, 19137226, 27923182, 38274452, 55846364, 66980291, 133960582, 267921164, 755920427, 1511840854, 3023681708, 5291442989, 10582885978, 21165771956]

約数ペア:

[(1, 21165771956), (2, 10582885978), (4, 5291442989), (7, 3023681708), (14, 1511840854), (28, 755920427), (79, 267921164), (158, 133960582), (316, 66980291), (379, 55846364), (553, 38274452), (758, 27923182), (1106, 19137226), (1516, 13961591), (2212, 9568613), (2653, 7978052), (5306, 3989026), (10612, 1994513), (25247, 838348), (29941, 706916), (50494, 419174), (59882, 353458), (100988, 209587), (119764, 176729)]