21400750

素因数分解:

$2^1\times 5^3\times 7^2\times {\mathrm{1747}}^1$

素因数の和:1778

約数の個数: 48

約数和(自身を含む): 46629648

約数和(自身を除く): 25228898

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 125, 175, 245, 250, 350, 490, 875, 1225, 1747, 1750, 2450, 3494, 6125, 8735, 12229, 12250, 17470, 24458, 43675, 61145, 85603, 87350, 122290, 171206, 218375, 305725, 428015, 436750, 611450, 856030, 1528625, 2140075, 3057250, 4280150, 10700375, 21400750]

約数ペア:

[(1, 21400750), (2, 10700375), (5, 4280150), (7, 3057250), (10, 2140075), (14, 1528625), (25, 856030), (35, 611450), (49, 436750), (50, 428015), (70, 305725), (98, 218375), (125, 171206), (175, 122290), (245, 87350), (250, 85603), (350, 61145), (490, 43675), (875, 24458), (1225, 17470), (1747, 12250), (1750, 12229), (2450, 8735), (3494, 6125)]