18233505

素因数分解:

$3^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:412

約数の個数: 48

約数和(自身を含む): 33633600

約数和(自身を除く): 15400095

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 81, 129, 135, 215, 243, 349, 387, 405, 645, 1047, 1161, 1215, 1745, 1935, 3141, 3483, 5235, 5805, 9423, 10449, 15007, 15705, 17415, 28269, 45021, 47115, 52245, 75035, 84807, 135063, 141345, 225105, 405189, 424035, 675315, 1215567, 2025945, 3646701, 6077835, 18233505]

約数ペア:

[(1, 18233505), (3, 6077835), (5, 3646701), (9, 2025945), (15, 1215567), (27, 675315), (43, 424035), (45, 405189), (81, 225105), (129, 141345), (135, 135063), (215, 84807), (243, 75035), (349, 52245), (387, 47115), (405, 45021), (645, 28269), (1047, 17415), (1161, 15705), (1215, 15007), (1745, 10449), (1935, 9423), (3141, 5805), (3483, 5235)]