218314929

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{2579}}^1$

素因数の和:2757

約数の個数: 32

約数和(自身を含む): 346752000

約数和(自身を除く): 128437071

約数列:

[1, 3, 7, 21, 29, 87, 139, 203, 417, 609, 973, 2579, 2919, 4031, 7737, 12093, 18053, 28217, 54159, 74791, 84651, 224373, 358481, 523537, 1075443, 1570611, 2509367, 7528101, 10395949, 31187847, 72771643, 218314929]

約数ペア:

[(1, 218314929), (3, 72771643), (7, 31187847), (21, 10395949), (29, 7528101), (87, 2509367), (139, 1570611), (203, 1075443), (417, 523537), (609, 358481), (973, 224373), (2579, 84651), (2919, 74791), (4031, 54159), (7737, 28217), (12093, 18053)]