21453327

素因数分解:

$3^2\times 7^2\times {\mathrm{48647}}^1$

素因数の和:48667

約数の個数: 18

約数和(自身を含む): 36048168

約数和(自身を除く): 14594841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 48647, 145941, 340529, 437823, 1021587, 2383703, 3064761, 7151109, 21453327]

約数ペア:

[(1, 21453327), (3, 7151109), (7, 3064761), (9, 2383703), (21, 1021587), (49, 437823), (63, 340529), (147, 145941), (441, 48647)]