21041424

素因数分解:

$2^4\times 3^3\times {\mathrm{53}}^1\times {\mathrm{919}}^1$

素因数の和:989

約数の個数: 80

約数和(自身を含む): 61603200

約数和(自身を除く): 40561776

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 53, 54, 72, 106, 108, 144, 159, 212, 216, 318, 424, 432, 477, 636, 848, 919, 954, 1272, 1431, 1838, 1908, 2544, 2757, 2862, 3676, 3816, 5514, 5724, 7352, 7632, 8271, 11028, 11448, 14704, 16542, 22056, 22896, 24813, 33084, 44112, 48707, 49626, 66168, 97414, 99252, 132336, 146121, 194828, 198504, 292242, 389656, 397008, 438363, 584484, 779312, 876726, 1168968, 1315089, 1753452, 2337936, 2630178, 3506904, 5260356, 7013808, 10520712, 21041424]

約数ペア:

[(1, 21041424), (2, 10520712), (3, 7013808), (4, 5260356), (6, 3506904), (8, 2630178), (9, 2337936), (12, 1753452), (16, 1315089), (18, 1168968), (24, 876726), (27, 779312), (36, 584484), (48, 438363), (53, 397008), (54, 389656), (72, 292242), (106, 198504), (108, 194828), (144, 146121), (159, 132336), (212, 99252), (216, 97414), (318, 66168), (424, 49626), (432, 48707), (477, 44112), (636, 33084), (848, 24813), (919, 22896), (954, 22056), (1272, 16542), (1431, 14704), (1838, 11448), (1908, 11028), (2544, 8271), (2757, 7632), (2862, 7352), (3676, 5724), (3816, 5514)]