21000932225

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{56633}}^1$

素因数の和:56826

約数の個数: 48

約数和(自身を含む): 32247852672

約数和(自身を除く): 11246920447

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 163, 175, 325, 455, 815, 1141, 2119, 2275, 4075, 5705, 10595, 14833, 28525, 52975, 56633, 74165, 283165, 370825, 396431, 736229, 1415825, 1982155, 3681145, 5153603, 9231179, 9910775, 18405725, 25768015, 46155895, 64618253, 120005327, 128840075, 230779475, 323091265, 600026635, 840037289, 1615456325, 3000133175, 4200186445, 21000932225]

約数ペア:

[(1, 21000932225), (5, 4200186445), (7, 3000133175), (13, 1615456325), (25, 840037289), (35, 600026635), (65, 323091265), (91, 230779475), (163, 128840075), (175, 120005327), (325, 64618253), (455, 46155895), (815, 25768015), (1141, 18405725), (2119, 9910775), (2275, 9231179), (4075, 5153603), (5705, 3681145), (10595, 1982155), (14833, 1415825), (28525, 736229), (52975, 396431), (56633, 370825), (74165, 283165)]