720918

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^2\times {\mathrm{331}}^1$

素因数の和:361

約数の個数: 36

約数和(自身を含む): 1722084

約数和(自身を除く): 1001166

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 121, 198, 242, 331, 363, 662, 726, 993, 1089, 1986, 2178, 2979, 3641, 5958, 7282, 10923, 21846, 32769, 40051, 65538, 80102, 120153, 240306, 360459, 720918]

約数ペア:

[(1, 720918), (2, 360459), (3, 240306), (6, 120153), (9, 80102), (11, 65538), (18, 40051), (22, 32769), (33, 21846), (66, 10923), (99, 7282), (121, 5958), (198, 3641), (242, 2979), (331, 2178), (363, 1986), (662, 1089), (726, 993)]