21651396

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2953}}^1$

素因数の和:3020

約数の個数: 48

約数和(自身を含む): 55582464

約数和(自身を除く): 33931068

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 47, 52, 78, 94, 141, 156, 188, 282, 564, 611, 1222, 1833, 2444, 2953, 3666, 5906, 7332, 8859, 11812, 17718, 35436, 38389, 76778, 115167, 138791, 153556, 230334, 277582, 416373, 460668, 555164, 832746, 1665492, 1804283, 3608566, 5412849, 7217132, 10825698, 21651396]

約数ペア:

[(1, 21651396), (2, 10825698), (3, 7217132), (4, 5412849), (6, 3608566), (12, 1804283), (13, 1665492), (26, 832746), (39, 555164), (47, 460668), (52, 416373), (78, 277582), (94, 230334), (141, 153556), (156, 138791), (188, 115167), (282, 76778), (564, 38389), (611, 35436), (1222, 17718), (1833, 11812), (2444, 8859), (2953, 7332), (3666, 5906)]