21015180

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{38917}}^1$

素因数の和:38935

約数の個数: 48

約数和(自身を含む): 65382240

約数和(自身を除く): 44367060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 38917, 77834, 116751, 155668, 194585, 233502, 350253, 389170, 467004, 583755, 700506, 778340, 1050759, 1167510, 1401012, 1751265, 2101518, 2335020, 3502530, 4203036, 5253795, 7005060, 10507590, 21015180]

約数ペア:

[(1, 21015180), (2, 10507590), (3, 7005060), (4, 5253795), (5, 4203036), (6, 3502530), (9, 2335020), (10, 2101518), (12, 1751265), (15, 1401012), (18, 1167510), (20, 1050759), (27, 778340), (30, 700506), (36, 583755), (45, 467004), (54, 389170), (60, 350253), (90, 233502), (108, 194585), (135, 155668), (180, 116751), (270, 77834), (540, 38917)]