201721509

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{4817}}^1$

素因数の和:4887

約数の個数: 40

約数和(自身を含む): 335795328

約数和(自身を除く): 134073819

約数列:

[1, 3, 9, 11, 27, 33, 47, 81, 99, 141, 297, 423, 517, 891, 1269, 1551, 3807, 4653, 4817, 13959, 14451, 41877, 43353, 52987, 130059, 158961, 226399, 390177, 476883, 679197, 1430649, 2037591, 2490389, 4291947, 6112773, 7471167, 18338319, 22413501, 67240503, 201721509]

約数ペア:

[(1, 201721509), (3, 67240503), (9, 22413501), (11, 18338319), (27, 7471167), (33, 6112773), (47, 4291947), (81, 2490389), (99, 2037591), (141, 1430649), (297, 679197), (423, 476883), (517, 390177), (891, 226399), (1269, 158961), (1551, 130059), (3807, 52987), (4653, 43353), (4817, 41877), (13959, 14451)]