21212557965

素因数分解:

$3^3\times 5^1\times {\mathrm{787}}^1\times {\mathrm{199657}}^1$

素因数の和:200458

約数の個数: 32

約数和(自身を含む): 37759320960

約数和(自身を除く): 16546762995

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 787, 2361, 3935, 7083, 11805, 21249, 35415, 106245, 199657, 598971, 998285, 1796913, 2994855, 5390739, 8984565, 26953695, 157130059, 471390177, 785650295, 1414170531, 2356950885, 4242511593, 7070852655, 21212557965]

約数ペア:

[(1, 21212557965), (3, 7070852655), (5, 4242511593), (9, 2356950885), (15, 1414170531), (27, 785650295), (45, 471390177), (135, 157130059), (787, 26953695), (2361, 8984565), (3935, 5390739), (7083, 2994855), (11805, 1796913), (21249, 998285), (35415, 598971), (106245, 199657)]