28490763

素因数分解:

$3^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{5279}}^1$

素因数の和:5546

約数の個数: 16

約数和(自身を含む): 43591680

約数和(自身を除く): 15100917

約数列:

[1, 3, 7, 21, 257, 771, 1799, 5279, 5397, 15837, 36953, 110859, 1356703, 4070109, 9496921, 28490763]

約数ペア:

[(1, 28490763), (3, 9496921), (7, 4070109), (21, 1356703), (257, 110859), (771, 36953), (1799, 15837), (5279, 5397)]