21003750

素因数分解:

$2^1\times 3^2\times 5^4\times {\mathrm{1867}}^1$

素因数の和:1895

約数の個数: 60

約数和(自身を含む): 56897412

約数和(自身を除く): 35893662

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 125, 150, 225, 250, 375, 450, 625, 750, 1125, 1250, 1867, 1875, 2250, 3734, 3750, 5601, 5625, 9335, 11202, 11250, 16803, 18670, 28005, 33606, 46675, 56010, 84015, 93350, 140025, 168030, 233375, 280050, 420075, 466750, 700125, 840150, 1166875, 1400250, 2100375, 2333750, 3500625, 4200750, 7001250, 10501875, 21003750]

約数ペア:

[(1, 21003750), (2, 10501875), (3, 7001250), (5, 4200750), (6, 3500625), (9, 2333750), (10, 2100375), (15, 1400250), (18, 1166875), (25, 840150), (30, 700125), (45, 466750), (50, 420075), (75, 280050), (90, 233375), (125, 168030), (150, 140025), (225, 93350), (250, 84015), (375, 56010), (450, 46675), (625, 33606), (750, 28005), (1125, 18670), (1250, 16803), (1867, 11250), (1875, 11202), (2250, 9335), (3734, 5625), (3750, 5601)]