21080868

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{929}}^1$

素因数の和:1028

約数の個数: 48

約数和(自身を含む): 51663360

約数和(自身を除く): 30582492

約数列:

[1, 2, 3, 4, 6, 12, 31, 61, 62, 93, 122, 124, 183, 186, 244, 366, 372, 732, 929, 1858, 1891, 2787, 3716, 3782, 5574, 5673, 7564, 11148, 11346, 22692, 28799, 56669, 57598, 86397, 113338, 115196, 170007, 172794, 226676, 340014, 345588, 680028, 1756739, 3513478, 5270217, 7026956, 10540434, 21080868]

約数ペア:

[(1, 21080868), (2, 10540434), (3, 7026956), (4, 5270217), (6, 3513478), (12, 1756739), (31, 680028), (61, 345588), (62, 340014), (93, 226676), (122, 172794), (124, 170007), (183, 115196), (186, 113338), (244, 86397), (366, 57598), (372, 56669), (732, 28799), (929, 22692), (1858, 11346), (1891, 11148), (2787, 7564), (3716, 5673), (3782, 5574)]