21301714

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:163

約数の個数: 64

約数和(自身を含む): 41368320

約数和(自身を除く): 20066606

約数列:

[1, 2, 7, 14, 17, 34, 37, 41, 59, 74, 82, 118, 119, 238, 259, 287, 413, 518, 574, 629, 697, 826, 1003, 1258, 1394, 1517, 2006, 2183, 2419, 3034, 4366, 4403, 4838, 4879, 7021, 8806, 9758, 10619, 14042, 15281, 16933, 21238, 25789, 30562, 33866, 37111, 41123, 51578, 74222, 82246, 89503, 179006, 180523, 259777, 287861, 361046, 519554, 575722, 626521, 1253042, 1521551, 3043102, 10650857, 21301714]

約数ペア:

[(1, 21301714), (2, 10650857), (7, 3043102), (14, 1521551), (17, 1253042), (34, 626521), (37, 575722), (41, 519554), (59, 361046), (74, 287861), (82, 259777), (118, 180523), (119, 179006), (238, 89503), (259, 82246), (287, 74222), (413, 51578), (518, 41123), (574, 37111), (629, 33866), (697, 30562), (826, 25789), (1003, 21238), (1258, 16933), (1394, 15281), (1517, 14042), (2006, 10619), (2183, 9758), (2419, 8806), (3034, 7021), (4366, 4879), (4403, 4838)]