20129207

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:191

約数の個数: 32

約数和(自身を含む): 25712640

約数和(自身を除く): 5583433

約数列:

[1, 7, 17, 47, 59, 61, 119, 329, 413, 427, 799, 1003, 1037, 2773, 2867, 3599, 5593, 7021, 7259, 19411, 20069, 25193, 47141, 48739, 61183, 169153, 329987, 341173, 428281, 1184071, 2875601, 20129207]

約数ペア:

[(1, 20129207), (7, 2875601), (17, 1184071), (47, 428281), (59, 341173), (61, 329987), (119, 169153), (329, 61183), (413, 48739), (427, 47141), (799, 25193), (1003, 20069), (1037, 19411), (2773, 7259), (2867, 7021), (3599, 5593)]