201762981

素因数分解:

$3^4\times 7^1\times {\mathrm{521}}^1\times {\mathrm{683}}^1$

素因数の和:1223

約数の個数: 40

約数和(自身を含む): 345622464

約数和(自身を除く): 143859483

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 521, 567, 683, 1563, 2049, 3647, 4689, 4781, 6147, 10941, 14067, 14343, 18441, 32823, 42201, 43029, 55323, 98469, 129087, 295407, 355843, 387261, 1067529, 2490901, 3202587, 7472703, 9607761, 22418109, 28823283, 67254327, 201762981]

約数ペア:

[(1, 201762981), (3, 67254327), (7, 28823283), (9, 22418109), (21, 9607761), (27, 7472703), (63, 3202587), (81, 2490901), (189, 1067529), (521, 387261), (567, 355843), (683, 295407), (1563, 129087), (2049, 98469), (3647, 55323), (4689, 43029), (4781, 42201), (6147, 32823), (10941, 18441), (14067, 14343)]