21490848

素因数分解:

$2^5\times 3^2\times {\mathrm{71}}^1\times {\mathrm{1051}}^1$

素因数の和:1138

約数の個数: 72

約数和(自身を含む): 62034336

約数和(自身を除く): 40543488

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 71, 72, 96, 142, 144, 213, 284, 288, 426, 568, 639, 852, 1051, 1136, 1278, 1704, 2102, 2272, 2556, 3153, 3408, 4204, 5112, 6306, 6816, 8408, 9459, 10224, 12612, 16816, 18918, 20448, 25224, 33632, 37836, 50448, 74621, 75672, 100896, 149242, 151344, 223863, 298484, 302688, 447726, 596968, 671589, 895452, 1193936, 1343178, 1790904, 2387872, 2686356, 3581808, 5372712, 7163616, 10745424, 21490848]

約数ペア:

[(1, 21490848), (2, 10745424), (3, 7163616), (4, 5372712), (6, 3581808), (8, 2686356), (9, 2387872), (12, 1790904), (16, 1343178), (18, 1193936), (24, 895452), (32, 671589), (36, 596968), (48, 447726), (71, 302688), (72, 298484), (96, 223863), (142, 151344), (144, 149242), (213, 100896), (284, 75672), (288, 74621), (426, 50448), (568, 37836), (639, 33632), (852, 25224), (1051, 20448), (1136, 18918), (1278, 16816), (1704, 12612), (2102, 10224), (2272, 9459), (2556, 8408), (3153, 6816), (3408, 6306), (4204, 5112)]