217916643

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{509}}^1$

素因数の和:604

約数の個数: 64

約数和(自身を含む): 372096000

約数和(自身を除く): 154179357

約数列:

[1, 3, 7, 19, 21, 29, 37, 57, 87, 111, 133, 203, 259, 399, 509, 551, 609, 703, 777, 1073, 1527, 1653, 2109, 3219, 3563, 3857, 4921, 7511, 9671, 10689, 11571, 14761, 14763, 18833, 20387, 22533, 29013, 44283, 56499, 61161, 67697, 103327, 131831, 142709, 203091, 280459, 309981, 357827, 395493, 428127, 546157, 841377, 1073481, 1638471, 1963213, 2504789, 3823099, 5889639, 7514367, 10376983, 11469297, 31130949, 72638881, 217916643]

約数ペア:

[(1, 217916643), (3, 72638881), (7, 31130949), (19, 11469297), (21, 10376983), (29, 7514367), (37, 5889639), (57, 3823099), (87, 2504789), (111, 1963213), (133, 1638471), (203, 1073481), (259, 841377), (399, 546157), (509, 428127), (551, 395493), (609, 357827), (703, 309981), (777, 280459), (1073, 203091), (1527, 142709), (1653, 131831), (2109, 103327), (3219, 67697), (3563, 61161), (3857, 56499), (4921, 44283), (7511, 29013), (9671, 22533), (10689, 20387), (11571, 18833), (14761, 14763)]