20147502921

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{41023}}^1$

素因数の和:41310

約数の個数: 48

約数和(自身を含む): 33784740864

約数和(自身を除く): 13637237943

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 257, 273, 637, 771, 1799, 1911, 3341, 5397, 10023, 12593, 23387, 37779, 41023, 70161, 123069, 163709, 287161, 491127, 533299, 861483, 1599897, 2010127, 3733093, 6030381, 10542911, 11199279, 26131651, 31628733, 73800377, 78394953, 137057843, 221401131, 411173529, 516602639, 959404901, 1549807917, 2878214703, 6715834307, 20147502921]

約数ペア:

[(1, 20147502921), (3, 6715834307), (7, 2878214703), (13, 1549807917), (21, 959404901), (39, 516602639), (49, 411173529), (91, 221401131), (147, 137057843), (257, 78394953), (273, 73800377), (637, 31628733), (771, 26131651), (1799, 11199279), (1911, 10542911), (3341, 6030381), (5397, 3733093), (10023, 2010127), (12593, 1599897), (23387, 861483), (37779, 533299), (41023, 491127), (70161, 287161), (123069, 163709)]