21363363

素因数分解:

$3^2\times 7^2\times {\mathrm{193}}^1\times {\mathrm{251}}^1$

素因数の和:464

約数の個数: 36

約数和(自身を含む): 36226008

約数和(自身を除く): 14862645

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 193, 251, 441, 579, 753, 1351, 1737, 1757, 2259, 4053, 5271, 9457, 12159, 12299, 15813, 28371, 36897, 48443, 85113, 110691, 145329, 339101, 435987, 1017303, 2373707, 3051909, 7121121, 21363363]

約数ペア:

[(1, 21363363), (3, 7121121), (7, 3051909), (9, 2373707), (21, 1017303), (49, 435987), (63, 339101), (147, 145329), (193, 110691), (251, 85113), (441, 48443), (579, 36897), (753, 28371), (1351, 15813), (1737, 12299), (1757, 12159), (2259, 9457), (4053, 5271)]