21471736

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{137}}^2$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 47645640

約数和(自身を除く): 26173904

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 137, 143, 274, 286, 548, 572, 1096, 1144, 1507, 1781, 3014, 3562, 6028, 7124, 12056, 14248, 18769, 19591, 37538, 39182, 75076, 78364, 150152, 156728, 206459, 243997, 412918, 487994, 825836, 975988, 1651672, 1951976, 2683967, 5367934, 10735868, 21471736]

約数ペア:

[(1, 21471736), (2, 10735868), (4, 5367934), (8, 2683967), (11, 1951976), (13, 1651672), (22, 975988), (26, 825836), (44, 487994), (52, 412918), (88, 243997), (104, 206459), (137, 156728), (143, 150152), (274, 78364), (286, 75076), (548, 39182), (572, 37538), (1096, 19591), (1144, 18769), (1507, 14248), (1781, 12056), (3014, 7124), (3562, 6028)]