213953271

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{257}}^1\times {\mathrm{1367}}^1$

素因数の和:1663

約数の個数: 32

約数和(自身を含む): 338826240

約数和(自身を除く): 124872969

約数列:

[1, 3, 7, 21, 29, 87, 203, 257, 609, 771, 1367, 1799, 4101, 5397, 7453, 9569, 22359, 28707, 39643, 52171, 118929, 156513, 277501, 351319, 832503, 1053957, 2459233, 7377699, 10188251, 30564753, 71317757, 213953271]

約数ペア:

[(1, 213953271), (3, 71317757), (7, 30564753), (21, 10188251), (29, 7377699), (87, 2459233), (203, 1053957), (257, 832503), (609, 351319), (771, 277501), (1367, 156513), (1799, 118929), (4101, 52171), (5397, 39643), (7453, 28707), (9569, 22359)]