18540998

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1621}}^1$

素因数の和:1692

約数の個数: 32

約数和(自身を含む): 34256640

約数和(自身を除く): 15715642

約数列:

[1, 2, 7, 14, 19, 38, 43, 86, 133, 266, 301, 602, 817, 1621, 1634, 3242, 5719, 11347, 11438, 22694, 30799, 61598, 69703, 139406, 215593, 431186, 487921, 975842, 1324357, 2648714, 9270499, 18540998]

約数ペア:

[(1, 18540998), (2, 9270499), (7, 2648714), (14, 1324357), (19, 975842), (38, 487921), (43, 431186), (86, 215593), (133, 139406), (266, 69703), (301, 61598), (602, 30799), (817, 22694), (1621, 11438), (1634, 11347), (3242, 5719)]