20457003308

素因数分解:

$2^2\times 7^1\times {\mathrm{10211}}^1\times {\mathrm{71551}}^1$

素因数の和:81773

約数の個数: 24

約数和(自身を含む): 40918585344

約数和(自身を除く): 20461582036

約数列:

[1, 2, 4, 7, 14, 28, 10211, 20422, 40844, 71477, 71551, 142954, 143102, 285908, 286204, 500857, 1001714, 2003428, 730607261, 1461214522, 2922429044, 5114250827, 10228501654, 20457003308]

約数ペア:

[(1, 20457003308), (2, 10228501654), (4, 5114250827), (7, 2922429044), (14, 1461214522), (28, 730607261), (10211, 2003428), (20422, 1001714), (40844, 500857), (71477, 286204), (71551, 285908), (142954, 143102)]