280539

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:147

約数の個数: 24

約数和(自身を含む): 477152

約数和(自身を除く): 196613

約数列:

[1, 3, 7, 9, 21, 61, 63, 73, 183, 219, 427, 511, 549, 657, 1281, 1533, 3843, 4453, 4599, 13359, 31171, 40077, 93513, 280539]

約数ペア:

[(1, 280539), (3, 93513), (7, 40077), (9, 31171), (21, 13359), (61, 4599), (63, 4453), (73, 3843), (183, 1533), (219, 1281), (427, 657), (511, 549)]