20669994

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2179}}^1$

素因数の和:2235

約数の個数: 48

約数和(自身を含む): 48971520

約数和(自身を除く): 28301526

約数列:

[1, 2, 3, 6, 9, 17, 18, 31, 34, 51, 62, 93, 102, 153, 186, 279, 306, 527, 558, 1054, 1581, 2179, 3162, 4358, 4743, 6537, 9486, 13074, 19611, 37043, 39222, 67549, 74086, 111129, 135098, 202647, 222258, 333387, 405294, 607941, 666774, 1148333, 1215882, 2296666, 3444999, 6889998, 10334997, 20669994]

約数ペア:

[(1, 20669994), (2, 10334997), (3, 6889998), (6, 3444999), (9, 2296666), (17, 1215882), (18, 1148333), (31, 666774), (34, 607941), (51, 405294), (62, 333387), (93, 222258), (102, 202647), (153, 135098), (186, 111129), (279, 74086), (306, 67549), (527, 39222), (558, 37043), (1054, 19611), (1581, 13074), (2179, 9486), (3162, 6537), (4358, 4743)]