209497395

素因数分解:

$3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{191}}^1\times {\mathrm{881}}^1$

素因数の和:1163

約数の個数: 32

約数和(自身を含む): 341397504

約数和(自身を除く): 131900109

約数列:

[1, 3, 5, 15, 83, 191, 249, 415, 573, 881, 955, 1245, 2643, 2865, 4405, 13215, 15853, 47559, 73123, 79265, 168271, 219369, 237795, 365615, 504813, 841355, 1096845, 2524065, 13966493, 41899479, 69832465, 209497395]

約数ペア:

[(1, 209497395), (3, 69832465), (5, 41899479), (15, 13966493), (83, 2524065), (191, 1096845), (249, 841355), (415, 504813), (573, 365615), (881, 237795), (955, 219369), (1245, 168271), (2643, 79265), (2865, 73123), (4405, 47559), (13215, 15853)]