21640644

素因数分解:

$2^2\times 3^2\times {\mathrm{509}}^1\times {\mathrm{1181}}^1$

素因数の和:1700

約数の個数: 36

約数和(自身を含む): 54856620

約数和(自身を除く): 33215976

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 509, 1018, 1181, 1527, 2036, 2362, 3054, 3543, 4581, 4724, 6108, 7086, 9162, 10629, 14172, 18324, 21258, 42516, 601129, 1202258, 1803387, 2404516, 3606774, 5410161, 7213548, 10820322, 21640644]

約数ペア:

[(1, 21640644), (2, 10820322), (3, 7213548), (4, 5410161), (6, 3606774), (9, 2404516), (12, 1803387), (18, 1202258), (36, 601129), (509, 42516), (1018, 21258), (1181, 18324), (1527, 14172), (2036, 10629), (2362, 9162), (3054, 7086), (3543, 6108), (4581, 4724)]