405801981

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{6761}}^1$

素因数の和:6808

約数の個数: 48

約数和(自身を含む): 689183040

約数和(自身を除く): 283381059

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 81, 117, 171, 243, 247, 351, 513, 741, 1053, 1539, 2223, 3159, 4617, 6669, 6761, 20007, 20283, 60021, 60849, 87893, 128459, 182547, 263679, 385377, 547641, 791037, 1156131, 1642923, 1669967, 2373111, 3468393, 5009901, 7119333, 10405179, 15029703, 21357999, 31215537, 45089109, 135267327, 405801981]

約数ペア:

[(1, 405801981), (3, 135267327), (9, 45089109), (13, 31215537), (19, 21357999), (27, 15029703), (39, 10405179), (57, 7119333), (81, 5009901), (117, 3468393), (171, 2373111), (243, 1669967), (247, 1642923), (351, 1156131), (513, 791037), (741, 547641), (1053, 385377), (1539, 263679), (2223, 182547), (3159, 128459), (4617, 87893), (6669, 60849), (6761, 60021), (20007, 20283)]