21101886

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2909}}^1$

素因数の和:2961

約数の個数: 48

約数和(自身を含む): 50843520

約数和(自身を除く): 29741634

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 31, 39, 62, 78, 93, 117, 186, 234, 279, 403, 558, 806, 1209, 2418, 2909, 3627, 5818, 7254, 8727, 17454, 26181, 37817, 52362, 75634, 90179, 113451, 180358, 226902, 270537, 340353, 541074, 680706, 811611, 1172327, 1623222, 2344654, 3516981, 7033962, 10550943, 21101886]

約数ペア:

[(1, 21101886), (2, 10550943), (3, 7033962), (6, 3516981), (9, 2344654), (13, 1623222), (18, 1172327), (26, 811611), (31, 680706), (39, 541074), (62, 340353), (78, 270537), (93, 226902), (117, 180358), (186, 113451), (234, 90179), (279, 75634), (403, 52362), (558, 37817), (806, 26181), (1209, 17454), (2418, 8727), (2909, 7254), (3627, 5818)]