163969281

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{42667}}^1$

素因数の和:42741

約数の個数: 24

約数和(自身を含む): 275123264

約数和(自身を除く): 111153983

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3843, 42667, 128001, 298669, 384003, 896007, 2602687, 2688021, 7808061, 18218809, 23424183, 54656427, 163969281]

約数ペア:

[(1, 163969281), (3, 54656427), (7, 23424183), (9, 18218809), (21, 7808061), (61, 2688021), (63, 2602687), (183, 896007), (427, 384003), (549, 298669), (1281, 128001), (3843, 42667)]