20998908

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3623}}^1$

素因数の和:3663

約数の個数: 72

約数和(自身を含む): 63318528

約数和(自身を除く): 42319620

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 28, 36, 42, 46, 63, 69, 84, 92, 126, 138, 161, 207, 252, 276, 322, 414, 483, 644, 828, 966, 1449, 1932, 2898, 3623, 5796, 7246, 10869, 14492, 21738, 25361, 32607, 43476, 50722, 65214, 76083, 83329, 101444, 130428, 152166, 166658, 228249, 249987, 304332, 333316, 456498, 499974, 583303, 749961, 912996, 999948, 1166606, 1499922, 1749909, 2333212, 2999844, 3499818, 5249727, 6999636, 10499454, 20998908]

約数ペア:

[(1, 20998908), (2, 10499454), (3, 6999636), (4, 5249727), (6, 3499818), (7, 2999844), (9, 2333212), (12, 1749909), (14, 1499922), (18, 1166606), (21, 999948), (23, 912996), (28, 749961), (36, 583303), (42, 499974), (46, 456498), (63, 333316), (69, 304332), (84, 249987), (92, 228249), (126, 166658), (138, 152166), (161, 130428), (207, 101444), (252, 83329), (276, 76083), (322, 65214), (414, 50722), (483, 43476), (644, 32607), (828, 25361), (966, 21738), (1449, 14492), (1932, 10869), (2898, 7246), (3623, 5796)]