2021690745

素因数分解:

$3^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97879}}^1$

素因数の和:97916

約数の個数: 48

約数和(自身を含む): 3847858560

約数和(自身を除く): 1826167815

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 243, 255, 405, 459, 765, 1215, 1377, 2295, 4131, 6885, 20655, 97879, 293637, 489395, 880911, 1468185, 1663943, 2642733, 4404555, 4991829, 7928199, 8319715, 13213665, 14975487, 23784597, 24959145, 39640995, 44926461, 74877435, 118922985, 134779383, 224632305, 404338149, 673896915, 2021690745]

約数ペア:

[(1, 2021690745), (3, 673896915), (5, 404338149), (9, 224632305), (15, 134779383), (17, 118922985), (27, 74877435), (45, 44926461), (51, 39640995), (81, 24959145), (85, 23784597), (135, 14975487), (153, 13213665), (243, 8319715), (255, 7928199), (405, 4991829), (459, 4404555), (765, 2642733), (1215, 1663943), (1377, 1468185), (2295, 880911), (4131, 489395), (6885, 293637), (20655, 97879)]