2643641

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:189

約数の個数: 32

約数和(自身を含む): 3763200

約数和(自身を除く): 1119559

約数列:

[1, 7, 11, 13, 19, 77, 91, 133, 139, 143, 209, 247, 973, 1001, 1463, 1529, 1729, 1807, 2641, 2717, 10703, 12649, 18487, 19019, 19877, 29051, 34333, 139139, 203357, 240331, 377663, 2643641]

約数ペア:

[(1, 2643641), (7, 377663), (11, 240331), (13, 203357), (19, 139139), (77, 34333), (91, 29051), (133, 19877), (139, 19019), (143, 18487), (209, 12649), (247, 10703), (973, 2717), (1001, 2641), (1463, 1807), (1529, 1729)]