21271248

素因数分解:

$2^4\times 3^5\times {\mathrm{5471}}^1$

素因数の和:5494

約数の個数: 60

約数和(自身を含む): 61746048

約数和(自身を除く): 40474800

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 81, 108, 144, 162, 216, 243, 324, 432, 486, 648, 972, 1296, 1944, 3888, 5471, 10942, 16413, 21884, 32826, 43768, 49239, 65652, 87536, 98478, 131304, 147717, 196956, 262608, 295434, 393912, 443151, 590868, 787824, 886302, 1181736, 1329453, 1772604, 2363472, 2658906, 3545208, 5317812, 7090416, 10635624, 21271248]

約数ペア:

[(1, 21271248), (2, 10635624), (3, 7090416), (4, 5317812), (6, 3545208), (8, 2658906), (9, 2363472), (12, 1772604), (16, 1329453), (18, 1181736), (24, 886302), (27, 787824), (36, 590868), (48, 443151), (54, 393912), (72, 295434), (81, 262608), (108, 196956), (144, 147717), (162, 131304), (216, 98478), (243, 87536), (324, 65652), (432, 49239), (486, 43768), (648, 32826), (972, 21884), (1296, 16413), (1944, 10942), (3888, 5471)]