21573750

素因数分解:

$2^1\times 3^1\times 5^4\times {\mathrm{11}}^1\times {\mathrm{523}}^1$

素因数の和:559

約数の個数: 80

約数和(自身を含む): 58931136

約数和(自身を除く): 37357386

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 25, 30, 33, 50, 55, 66, 75, 110, 125, 150, 165, 250, 275, 330, 375, 523, 550, 625, 750, 825, 1046, 1250, 1375, 1569, 1650, 1875, 2615, 2750, 3138, 3750, 4125, 5230, 5753, 6875, 7845, 8250, 11506, 13075, 13750, 15690, 17259, 20625, 26150, 28765, 34518, 39225, 41250, 57530, 65375, 78450, 86295, 130750, 143825, 172590, 196125, 287650, 326875, 392250, 431475, 653750, 719125, 862950, 980625, 1438250, 1961250, 2157375, 3595625, 4314750, 7191250, 10786875, 21573750]

約数ペア:

[(1, 21573750), (2, 10786875), (3, 7191250), (5, 4314750), (6, 3595625), (10, 2157375), (11, 1961250), (15, 1438250), (22, 980625), (25, 862950), (30, 719125), (33, 653750), (50, 431475), (55, 392250), (66, 326875), (75, 287650), (110, 196125), (125, 172590), (150, 143825), (165, 130750), (250, 86295), (275, 78450), (330, 65375), (375, 57530), (523, 41250), (550, 39225), (625, 34518), (750, 28765), (825, 26150), (1046, 20625), (1250, 17259), (1375, 15690), (1569, 13750), (1650, 13075), (1875, 11506), (2615, 8250), (2750, 7845), (3138, 6875), (3750, 5753), (4125, 5230)]