21549381

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{14057}}^1$

素因数の和:14140

約数の個数: 16

約数和(自身を含む): 33289344

約数和(自身を除く): 11739963

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 14057, 42171, 98399, 295197, 1026161, 3078483, 7183127, 21549381]

約数ペア:

[(1, 21549381), (3, 7183127), (7, 3078483), (21, 1026161), (73, 295197), (219, 98399), (511, 42171), (1533, 14057)]