21811323

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{4409}}^1$

素因数の和:4526

約数の個数: 16

約数和(自身を含む): 31116960

約数和(自身を除く): 9305637

約数列:

[1, 3, 17, 51, 97, 291, 1649, 4409, 4947, 13227, 74953, 224859, 427673, 1283019, 7270441, 21811323]

約数ペア:

[(1, 21811323), (3, 7270441), (17, 1283019), (51, 427673), (97, 224859), (291, 74953), (1649, 13227), (4409, 4947)]