2211705

素因数分解:

$3^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:187

約数の個数: 40

約数和(自身を含む): 4088832

約数和(自身を除く): 1877127

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 81, 127, 129, 135, 215, 381, 387, 405, 635, 645, 1143, 1161, 1905, 1935, 3429, 3483, 5461, 5715, 5805, 10287, 16383, 17145, 17415, 27305, 49149, 51435, 81915, 147447, 245745, 442341, 737235, 2211705]

約数ペア:

[(1, 2211705), (3, 737235), (5, 442341), (9, 245745), (15, 147447), (27, 81915), (43, 51435), (45, 49149), (81, 27305), (127, 17415), (129, 17145), (135, 16383), (215, 10287), (381, 5805), (387, 5715), (405, 5461), (635, 3483), (645, 3429), (1143, 1935), (1161, 1905)]