21381470950

素因数分解:

$2^1\times 5^2\times 7^3\times {\mathrm{1246733}}^1$

素因数の和:1246766

約数の個数: 48

約数和(自身を含む): 46378504800

約数和(自身を除く): 24997033850

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 175, 245, 343, 350, 490, 686, 1225, 1715, 2450, 3430, 8575, 17150, 1246733, 2493466, 6233665, 8727131, 12467330, 17454262, 31168325, 43635655, 61089917, 62336650, 87271310, 122179834, 218178275, 305449585, 427629419, 436356550, 610899170, 855258838, 1527247925, 2138147095, 3054495850, 4276294190, 10690735475, 21381470950]

約数ペア:

[(1, 21381470950), (2, 10690735475), (5, 4276294190), (7, 3054495850), (10, 2138147095), (14, 1527247925), (25, 855258838), (35, 610899170), (49, 436356550), (50, 427629419), (70, 305449585), (98, 218178275), (175, 122179834), (245, 87271310), (343, 62336650), (350, 61089917), (490, 43635655), (686, 31168325), (1225, 17454262), (1715, 12467330), (2450, 8727131), (3430, 6233665), (8575, 2493466), (17150, 1246733)]