21043872

素因数分解:

$2^5\times 3^2\times {\mathrm{89}}^1\times {\mathrm{821}}^1$

素因数の和:926

約数の個数: 72

約数和(自身を含む): 60589620

約数和(自身を除く): 39545748

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 89, 96, 144, 178, 267, 288, 356, 534, 712, 801, 821, 1068, 1424, 1602, 1642, 2136, 2463, 2848, 3204, 3284, 4272, 4926, 6408, 6568, 7389, 8544, 9852, 12816, 13136, 14778, 19704, 25632, 26272, 29556, 39408, 59112, 73069, 78816, 118224, 146138, 219207, 236448, 292276, 438414, 584552, 657621, 876828, 1169104, 1315242, 1753656, 2338208, 2630484, 3507312, 5260968, 7014624, 10521936, 21043872]

約数ペア:

[(1, 21043872), (2, 10521936), (3, 7014624), (4, 5260968), (6, 3507312), (8, 2630484), (9, 2338208), (12, 1753656), (16, 1315242), (18, 1169104), (24, 876828), (32, 657621), (36, 584552), (48, 438414), (72, 292276), (89, 236448), (96, 219207), (144, 146138), (178, 118224), (267, 78816), (288, 73069), (356, 59112), (534, 39408), (712, 29556), (801, 26272), (821, 25632), (1068, 19704), (1424, 14778), (1602, 13136), (1642, 12816), (2136, 9852), (2463, 8544), (2848, 7389), (3204, 6568), (3284, 6408), (4272, 4926)]