21520748052

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{281}}^1\times {\mathrm{125141}}^1$

素因数の和:125449

約数の個数: 72

約数和(自身を含む): 57805092072

約数和(自身を除く): 36284344020

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 102, 153, 204, 281, 306, 562, 612, 843, 1124, 1686, 2529, 3372, 4777, 5058, 9554, 10116, 14331, 19108, 28662, 42993, 57324, 85986, 125141, 171972, 250282, 375423, 500564, 750846, 1126269, 1501692, 2127397, 2252538, 4254794, 4505076, 6382191, 8509588, 12764382, 19146573, 25528764, 35164621, 38293146, 70329242, 76586292, 105493863, 140658484, 210987726, 316481589, 421975452, 597798557, 632963178, 1195597114, 1265926356, 1793395671, 2391194228, 3586791342, 5380187013, 7173582684, 10760374026, 21520748052]

約数ペア:

[(1, 21520748052), (2, 10760374026), (3, 7173582684), (4, 5380187013), (6, 3586791342), (9, 2391194228), (12, 1793395671), (17, 1265926356), (18, 1195597114), (34, 632963178), (36, 597798557), (51, 421975452), (68, 316481589), (102, 210987726), (153, 140658484), (204, 105493863), (281, 76586292), (306, 70329242), (562, 38293146), (612, 35164621), (843, 25528764), (1124, 19146573), (1686, 12764382), (2529, 8509588), (3372, 6382191), (4777, 4505076), (5058, 4254794), (9554, 2252538), (10116, 2127397), (14331, 1501692), (19108, 1126269), (28662, 750846), (42993, 500564), (57324, 375423), (85986, 250282), (125141, 171972)]