21793252

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{277}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 44135280

約数和(自身を除く): 22342028

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 89, 178, 221, 277, 356, 442, 554, 884, 1108, 1157, 1513, 2314, 3026, 3601, 4628, 4709, 6052, 7202, 9418, 14404, 18836, 19669, 24653, 39338, 49306, 61217, 78676, 98612, 122434, 244868, 320489, 419101, 640978, 838202, 1281956, 1676404, 5448313, 10896626, 21793252]

約数ペア:

[(1, 21793252), (2, 10896626), (4, 5448313), (13, 1676404), (17, 1281956), (26, 838202), (34, 640978), (52, 419101), (68, 320489), (89, 244868), (178, 122434), (221, 98612), (277, 78676), (356, 61217), (442, 49306), (554, 39338), (884, 24653), (1108, 19669), (1157, 18836), (1513, 14404), (2314, 9418), (3026, 7202), (3601, 6052), (4628, 4709)]