279553729

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{1151}}^1$

素因数の和:1345

約数の個数: 32

約数和(自身を含む): 366944256

約数和(自身を除く): 87390527

約数列:

[1, 7, 13, 17, 91, 119, 157, 221, 1099, 1151, 1547, 2041, 2669, 8057, 14287, 14963, 18683, 19567, 34697, 104741, 136969, 180707, 242879, 254371, 1264949, 1780597, 2349191, 3072019, 16444337, 21504133, 39936247, 279553729]

約数ペア:

[(1, 279553729), (7, 39936247), (13, 21504133), (17, 16444337), (91, 3072019), (119, 2349191), (157, 1780597), (221, 1264949), (1099, 254371), (1151, 242879), (1547, 180707), (2041, 136969), (2669, 104741), (8057, 34697), (14287, 19567), (14963, 18683)]