21242812

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{1051}}^1$

素因数の和:1249

約数の個数: 24

約数和(自身を含む): 38646272

約数和(自身を除く): 17403460

約数列:

[1, 2, 4, 31, 62, 124, 163, 326, 652, 1051, 2102, 4204, 5053, 10106, 20212, 32581, 65162, 130324, 171313, 342626, 685252, 5310703, 10621406, 21242812]

約数ペア:

[(1, 21242812), (2, 10621406), (4, 5310703), (31, 685252), (62, 342626), (124, 171313), (163, 130324), (326, 65162), (652, 32581), (1051, 20212), (2102, 10106), (4204, 5053)]