21860655

素因数分解:

$3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{6907}}^1$

素因数の和:7126

約数の個数: 16

約数和(自身を含む): 35147904

約数和(自身を除く): 13287249

約数列:

[1, 3, 5, 15, 211, 633, 1055, 3165, 6907, 20721, 34535, 103605, 1457377, 4372131, 7286885, 21860655]

約数ペア:

[(1, 21860655), (3, 7286885), (5, 4372131), (15, 1457377), (211, 103605), (633, 34535), (1055, 20721), (3165, 6907)]