16321725

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{241}}^1$

素因数の和:307

約数の個数: 72

約数和(自身を含む): 34329152

約数和(自身を除く): 18007427

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 43, 45, 63, 75, 105, 129, 175, 215, 225, 241, 301, 315, 387, 525, 645, 723, 903, 1075, 1205, 1505, 1575, 1687, 1935, 2169, 2709, 3225, 3615, 4515, 5061, 6025, 7525, 8435, 9675, 10363, 10845, 13545, 15183, 18075, 22575, 25305, 31089, 42175, 51815, 54225, 67725, 72541, 75915, 93267, 126525, 155445, 217623, 259075, 362705, 379575, 466335, 652869, 777225, 1088115, 1813525, 2331675, 3264345, 5440575, 16321725]

約数ペア:

[(1, 16321725), (3, 5440575), (5, 3264345), (7, 2331675), (9, 1813525), (15, 1088115), (21, 777225), (25, 652869), (35, 466335), (43, 379575), (45, 362705), (63, 259075), (75, 217623), (105, 155445), (129, 126525), (175, 93267), (215, 75915), (225, 72541), (241, 67725), (301, 54225), (315, 51815), (387, 42175), (525, 31089), (645, 25305), (723, 22575), (903, 18075), (1075, 15183), (1205, 13545), (1505, 10845), (1575, 10363), (1687, 9675), (1935, 8435), (2169, 7525), (2709, 6025), (3225, 5061), (3615, 4515)]