21164055

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{4423}}^1$

素因数の和:4471

約数の個数: 32

約数和(自身を含む): 38223360

約数和(自身を除く): 17059305

約数列:

[1, 3, 5, 11, 15, 29, 33, 55, 87, 145, 165, 319, 435, 957, 1595, 4423, 4785, 13269, 22115, 48653, 66345, 128267, 145959, 243265, 384801, 641335, 729795, 1410937, 1924005, 4232811, 7054685, 21164055]

約数ペア:

[(1, 21164055), (3, 7054685), (5, 4232811), (11, 1924005), (15, 1410937), (29, 729795), (33, 641335), (55, 384801), (87, 243265), (145, 145959), (165, 128267), (319, 66345), (435, 48653), (957, 22115), (1595, 13269), (4423, 4785)]