21456798

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{2153}}^1$

素因数の和:2320

約数の個数: 32

約数和(自身を含む): 47146752

約数和(自身を除く): 25689954

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 151, 302, 453, 906, 1661, 2153, 3322, 4306, 4983, 6459, 9966, 12918, 23683, 47366, 71049, 142098, 325103, 650206, 975309, 1950618, 3576133, 7152266, 10728399, 21456798]

約数ペア:

[(1, 21456798), (2, 10728399), (3, 7152266), (6, 3576133), (11, 1950618), (22, 975309), (33, 650206), (66, 325103), (151, 142098), (302, 71049), (453, 47366), (906, 23683), (1661, 12918), (2153, 9966), (3322, 6459), (4306, 4983)]