21697786

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{313}}^1$

素因数の和:486

約数の個数: 32

約数和(自身を含む): 37438848

約数和(自身を除く): 15741062

約数列:

[1, 2, 11, 22, 23, 46, 137, 253, 274, 313, 506, 626, 1507, 3014, 3151, 3443, 6302, 6886, 7199, 14398, 34661, 42881, 69322, 79189, 85762, 158378, 471691, 943382, 986263, 1972526, 10848893, 21697786]

約数ペア:

[(1, 21697786), (2, 10848893), (11, 1972526), (22, 986263), (23, 943382), (46, 471691), (137, 158378), (253, 85762), (274, 79189), (313, 69322), (506, 42881), (626, 34661), (1507, 14398), (3014, 7199), (3151, 6886), (3443, 6302)]