21430145

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{12569}}^1$

素因数の和:12616

約数の個数: 16

約数和(自身を含む): 28961280

約数和(自身を除く): 7531135

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 12569, 62845, 138259, 389639, 691295, 1948195, 4286029, 21430145]

約数ペア:

[(1, 21430145), (5, 4286029), (11, 1948195), (31, 691295), (55, 389639), (155, 138259), (341, 62845), (1705, 12569)]