21253500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{4723}}^1$

素因数の和:4748

約数の個数: 72

約数和(自身を含む): 67061904

約数和(自身を除く): 45808404

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 125, 150, 180, 225, 250, 300, 375, 450, 500, 750, 900, 1125, 1500, 2250, 4500, 4723, 9446, 14169, 18892, 23615, 28338, 42507, 47230, 56676, 70845, 85014, 94460, 118075, 141690, 170028, 212535, 236150, 283380, 354225, 425070, 472300, 590375, 708450, 850140, 1062675, 1180750, 1416900, 1771125, 2125350, 2361500, 3542250, 4250700, 5313375, 7084500, 10626750, 21253500]

約数ペア:

[(1, 21253500), (2, 10626750), (3, 7084500), (4, 5313375), (5, 4250700), (6, 3542250), (9, 2361500), (10, 2125350), (12, 1771125), (15, 1416900), (18, 1180750), (20, 1062675), (25, 850140), (30, 708450), (36, 590375), (45, 472300), (50, 425070), (60, 354225), (75, 283380), (90, 236150), (100, 212535), (125, 170028), (150, 141690), (180, 118075), (225, 94460), (250, 85014), (300, 70845), (375, 56676), (450, 47230), (500, 42507), (750, 28338), (900, 23615), (1125, 18892), (1500, 14169), (2250, 9446), (4500, 4723)]