20768385

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{659}}^1$

素因数の和:869

約数の個数: 32

約数和(自身を含む): 36495360

約数和(自身を除く): 15726975

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 191, 573, 659, 955, 1977, 2101, 2865, 3295, 6303, 7249, 9885, 10505, 21747, 31515, 36245, 108735, 125869, 377607, 629345, 1384559, 1888035, 4153677, 6922795, 20768385]

約数ペア:

[(1, 20768385), (3, 6922795), (5, 4153677), (11, 1888035), (15, 1384559), (33, 629345), (55, 377607), (165, 125869), (191, 108735), (573, 36245), (659, 31515), (955, 21747), (1977, 10505), (2101, 9885), (2865, 7249), (3295, 6303)]