210899199

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{1361}}^1$

素因数の和:1575

約数の個数: 32

約数和(自身を含む): 330541056

約数和(自身を除く): 119641857

約数列:

[1, 3, 7, 21, 47, 141, 157, 329, 471, 987, 1099, 1361, 3297, 4083, 7379, 9527, 22137, 28581, 51653, 63967, 154959, 191901, 213677, 447769, 641031, 1343307, 1495739, 4487217, 10042819, 30128457, 70299733, 210899199]

約数ペア:

[(1, 210899199), (3, 70299733), (7, 30128457), (21, 10042819), (47, 4487217), (141, 1495739), (157, 1343307), (329, 641031), (471, 447769), (987, 213677), (1099, 191901), (1361, 154959), (3297, 63967), (4083, 51653), (7379, 28581), (9527, 22137)]