219330741

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{2591}}^1$

素因数の和:2769

約数の個数: 32

約数和(自身を含む): 348364800

約数和(自身を除く): 129034059

約数列:

[1, 3, 7, 21, 29, 87, 139, 203, 417, 609, 973, 2591, 2919, 4031, 7773, 12093, 18137, 28217, 54411, 75139, 84651, 225417, 360149, 525973, 1080447, 1577919, 2521043, 7563129, 10444321, 31332963, 73110247, 219330741]

約数ペア:

[(1, 219330741), (3, 73110247), (7, 31332963), (21, 10444321), (29, 7563129), (87, 2521043), (139, 1577919), (203, 1080447), (417, 525973), (609, 360149), (973, 225417), (2591, 84651), (2919, 75139), (4031, 54411), (7773, 28217), (12093, 18137)]