21065958

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1601}}^1$

素因数の和:1669

約数の個数: 48

約数和(自身を含む): 49482576

約数和(自身を除く): 28416618

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 43, 51, 86, 102, 129, 153, 258, 306, 387, 731, 774, 1462, 1601, 2193, 3202, 4386, 4803, 6579, 9606, 13158, 14409, 27217, 28818, 54434, 68843, 81651, 137686, 163302, 206529, 244953, 413058, 489906, 619587, 1170331, 1239174, 2340662, 3510993, 7021986, 10532979, 21065958]

約数ペア:

[(1, 21065958), (2, 10532979), (3, 7021986), (6, 3510993), (9, 2340662), (17, 1239174), (18, 1170331), (34, 619587), (43, 489906), (51, 413058), (86, 244953), (102, 206529), (129, 163302), (153, 137686), (258, 81651), (306, 68843), (387, 54434), (731, 28818), (774, 27217), (1462, 14409), (1601, 13158), (2193, 9606), (3202, 6579), (4386, 4803)]