21074175

素因数分解:

$3^5\times 5^2\times {\mathrm{3469}}^1$

素因数の和:3494

約数の個数: 36

約数和(自身を含む): 39155480

約数和(自身を除く): 18081305

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 243, 405, 675, 1215, 2025, 3469, 6075, 10407, 17345, 31221, 52035, 86725, 93663, 156105, 260175, 280989, 468315, 780525, 842967, 1404945, 2341575, 4214835, 7024725, 21074175]

約数ペア:

[(1, 21074175), (3, 7024725), (5, 4214835), (9, 2341575), (15, 1404945), (25, 842967), (27, 780525), (45, 468315), (75, 280989), (81, 260175), (135, 156105), (225, 93663), (243, 86725), (405, 52035), (675, 31221), (1215, 17345), (2025, 10407), (3469, 6075)]