21205944

素因数分解:

$2^3\times 3^2\times {\mathrm{383}}^1\times {\mathrm{769}}^1$

素因数の和:1164

約数の個数: 48

約数和(自身を含む): 57657600

約数和(自身を除く): 36451656

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 383, 766, 769, 1149, 1532, 1538, 2298, 2307, 3064, 3076, 3447, 4596, 4614, 6152, 6894, 6921, 9192, 9228, 13788, 13842, 18456, 27576, 27684, 55368, 294527, 589054, 883581, 1178108, 1767162, 2356216, 2650743, 3534324, 5301486, 7068648, 10602972, 21205944]

約数ペア:

[(1, 21205944), (2, 10602972), (3, 7068648), (4, 5301486), (6, 3534324), (8, 2650743), (9, 2356216), (12, 1767162), (18, 1178108), (24, 883581), (36, 589054), (72, 294527), (383, 55368), (766, 27684), (769, 27576), (1149, 18456), (1532, 13842), (1538, 13788), (2298, 9228), (2307, 9192), (3064, 6921), (3076, 6894), (3447, 6152), (4596, 4614)]