21052936

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{283}}^1\times {\mathrm{547}}^1$

素因数の和:853

約数の個数: 32

約数和(自身を含む): 42020640

約数和(自身を除く): 20967704

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 283, 547, 566, 1094, 1132, 2188, 2264, 4376, 4811, 9299, 9622, 18598, 19244, 37196, 38488, 74392, 154801, 309602, 619204, 1238408, 2631617, 5263234, 10526468, 21052936]

約数ペア:

[(1, 21052936), (2, 10526468), (4, 5263234), (8, 2631617), (17, 1238408), (34, 619204), (68, 309602), (136, 154801), (283, 74392), (547, 38488), (566, 37196), (1094, 19244), (1132, 18598), (2188, 9622), (2264, 9299), (4376, 4811)]