1640287503

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{470941}}^1$

素因数の和:470996

約数の個数: 20

約数和(自身を含む): 2507295208

約数和(自身を除く): 867007705

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 470941, 1412823, 4238469, 12715407, 20250463, 38146221, 60751389, 182254167, 546762501, 1640287503]

約数ペア:

[(1, 1640287503), (3, 546762501), (9, 182254167), (27, 60751389), (43, 38146221), (81, 20250463), (129, 12715407), (387, 4238469), (1161, 1412823), (3483, 470941)]