81317943

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{947}}^1$

素因数の和:1036

約数の個数: 48

約数和(自身を含む): 141972480

約数和(自身を除く): 60654537

約数列:

[1, 3, 7, 9, 21, 29, 47, 63, 87, 141, 203, 261, 329, 423, 609, 947, 987, 1363, 1827, 2841, 2961, 4089, 6629, 8523, 9541, 12267, 19887, 27463, 28623, 44509, 59661, 82389, 85869, 133527, 192241, 247167, 311563, 400581, 576723, 934689, 1290761, 1730169, 2804067, 3872283, 9035327, 11616849, 27105981, 81317943]

約数ペア:

[(1, 81317943), (3, 27105981), (7, 11616849), (9, 9035327), (21, 3872283), (29, 2804067), (47, 1730169), (63, 1290761), (87, 934689), (141, 576723), (203, 400581), (261, 311563), (329, 247167), (423, 192241), (609, 133527), (947, 85869), (987, 82389), (1363, 59661), (1827, 44509), (2841, 28623), (2961, 27463), (4089, 19887), (6629, 12267), (8523, 9541)]