491001507

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{173}}^1\times {\mathrm{947}}^1$

素因数の和:1169

約数の個数: 40

約数和(自身を含む): 758449296

約数和(自身を除く): 267447789

約数列:

[1, 3, 9, 27, 37, 81, 111, 173, 333, 519, 947, 999, 1557, 2841, 2997, 4671, 6401, 8523, 14013, 19203, 25569, 35039, 57609, 76707, 105117, 163831, 172827, 315351, 491493, 518481, 946053, 1474479, 2838159, 4423437, 6061747, 13270311, 18185241, 54555723, 163667169, 491001507]

約数ペア:

[(1, 491001507), (3, 163667169), (9, 54555723), (27, 18185241), (37, 13270311), (81, 6061747), (111, 4423437), (173, 2838159), (333, 1474479), (519, 946053), (947, 518481), (999, 491493), (1557, 315351), (2841, 172827), (2997, 163831), (4671, 105117), (6401, 76707), (8523, 57609), (14013, 35039), (19203, 25569)]