20985752

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{6709}}^1$

素因数の和:6755

約数の個数: 32

約数和(自身を含む): 43480800

約数和(自身を除く): 22495048

約数列:

[1, 2, 4, 8, 17, 23, 34, 46, 68, 92, 136, 184, 391, 782, 1564, 3128, 6709, 13418, 26836, 53672, 114053, 154307, 228106, 308614, 456212, 617228, 912424, 1234456, 2623219, 5246438, 10492876, 20985752]

約数ペア:

[(1, 20985752), (2, 10492876), (4, 5246438), (8, 2623219), (17, 1234456), (23, 912424), (34, 617228), (46, 456212), (68, 308614), (92, 228106), (136, 154307), (184, 114053), (391, 53672), (782, 26836), (1564, 13418), (3128, 6709)]