21151800

素因数分解:

$2^3\times 3^3\times 5^2\times {\mathrm{3917}}^1$

素因数の和:3942

約数の個数: 96

約数和(自身を含む): 72874800

約数和(自身を除く): 51723000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 27, 30, 36, 40, 45, 50, 54, 60, 72, 75, 90, 100, 108, 120, 135, 150, 180, 200, 216, 225, 270, 300, 360, 450, 540, 600, 675, 900, 1080, 1350, 1800, 2700, 3917, 5400, 7834, 11751, 15668, 19585, 23502, 31336, 35253, 39170, 47004, 58755, 70506, 78340, 94008, 97925, 105759, 117510, 141012, 156680, 176265, 195850, 211518, 235020, 282024, 293775, 352530, 391700, 423036, 470040, 528795, 587550, 705060, 783400, 846072, 881325, 1057590, 1175100, 1410120, 1762650, 2115180, 2350200, 2643975, 3525300, 4230360, 5287950, 7050600, 10575900, 21151800]

約数ペア:

[(1, 21151800), (2, 10575900), (3, 7050600), (4, 5287950), (5, 4230360), (6, 3525300), (8, 2643975), (9, 2350200), (10, 2115180), (12, 1762650), (15, 1410120), (18, 1175100), (20, 1057590), (24, 881325), (25, 846072), (27, 783400), (30, 705060), (36, 587550), (40, 528795), (45, 470040), (50, 423036), (54, 391700), (60, 352530), (72, 293775), (75, 282024), (90, 235020), (100, 211518), (108, 195850), (120, 176265), (135, 156680), (150, 141012), (180, 117510), (200, 105759), (216, 97925), (225, 94008), (270, 78340), (300, 70506), (360, 58755), (450, 47004), (540, 39170), (600, 35253), (675, 31336), (900, 23502), (1080, 19585), (1350, 15668), (1800, 11751), (2700, 7834), (3917, 5400)]